women campaigning for free hormone replacement therapy on the nhs in england have won a partial victory. the government will now only charge for the cost of one prescription of hrt a year. the treatment is free in scotland, wales, and northern ireland. campaigners have been protesting outside parliament, as our political correspondent helen catt reports. cheering. they're menopausal and they came to parliament square to shout about what that means. among them, some famous faces who've made breaking taboos around the menopause a personal mission. i'm trying to help one woman at a time but in there we just saw the start of something where it feels like all women will get helped. and it wasn't political, it was, like, it was the beginning of a female revolution, you know. for many women, the symptoms that come with menopause can be a shock. it affected the way i was thinking and feeling. yeah, from confidence to mood swings to brain fog. adele now combines running this pub in kent with helping other women through a lifestage that she found challenging. i felt like i'd completely lost myself, and at the time ijust didn't know what it was. sorry. no, not at all. it was menopause. and this is why i do what i do �*cause ijust didn't want another woman...to look in the mirror and lose themselves like i did. adele says hormone replacement therapy helped her. it's free on the nhs in scotland, wales and northern ireland but has to be paid for in england. adele's patches cost £9.35 a time on the nhs, but other women can face a double charge if their treatment contains two hormones. in the house of commons, a labour mp who's been a leading campaigner on menopause has pushed for change. there's no avoiding the menopause for half of the population. most women will spend at least a third of their lives either perimenopausal, postmenopausal or the joy, menopausal. we must ensure that those women who need it, they're not denied hrt because of financial constraints. here, here. the minister agreed. she said she would look at the charging policy for treatments which contained two hormones. she also said doctors will be able to prescribe a year's worth of hrt for the cost of woman would usually pay for one batch. i can tell the house that we will amend the regulations to reduce the cost and improve access to hrt, so instead of paying for repeat prescription every month or every three months, the prescriber can issue a batch of prescriptions for up to 12 months with one signature and one prescription charge. here, here. cheering and applause. so hrt won't be free in england but it will cost less. another step in what seems to be a growing move to make real changes for women at a crucial stage of their lives. helen catt, bbc news, westminster. now on bbc news, our world investigates the controversial technology that could help tackle america's growing gun crime problem. 911, state your emergency. shots, 15 or 16. fin 911, state your emergency. shots, 15 or 16. on average in america. _ shots, 15 or 16. on average in america. 50 _ shots, 15 or 16. on average in america, 50 people _ shots, 15 or 16. on average in america, 50 people are - shots, 15 or 16. on average in america, 50 people are killed every day with guns. do you feel safe here?— feel safe here? no. in california, _ feel safe here? no. in california, we - feel safe here? no. in california, we have i feel safe here? no. in| california, we have the feel safe here? no. in - california, we have the worst gun violence.— gun violence. one company, shotspotter_ gun violence. one company, shotspotter says _ gun violence. one company, shotspotter says its - gun violence. one company, shotspotter says its gun - shotspotter says its gun located technology can help tackle this huge problem. this is the reason _ tackle this huge problem. this is the reason we _ tackle this huge problem. this is the reason we are _ tackle this huge problem. t1 3 is the reason we are able to apprehend them and stopped the killing spree. but apprehend them and stopped the killing spree-— killing spree. but some have questioned _ killing spree. but some have questioned how _ killing spree. but some have questioned how often - killing spree. but some have questioned how often the i questioned how often the company gets it right. so, is that, like, a typical court up from shotspotter?— that, like, a typical court up from shotspotter? yes, can't find any evidence. _ from shotspotter? yes, can't find any evidence. and - from shotspotter? yes, can't find any evidence. and when | find any evidence. and when thin . s find any evidence. and when things go — find any evidence. and when things go wrong, _ find any evidence. and when things go wrong, what - find any evidence. and when things go wrong, what are l find any evidence. and when i things go wrong, what are the consequences? to things go wrong, what are the consequences?— things go wrong, what are the consequences? to be in “ail and not know what i consequences? to be in “ail and not know what you h consequences? to be in “ail and not know what you did _ consequences? to be injail and not know what you did it - consequences? to be injail and not know what you did it for, i not know what you did it for, emotionally you are a wreck. does this technology work as well as the company claims? and what role can it lay in the american fight against gun crime? you can tell a lot from a waveform. how loud, how high, what frequency. train a computer algorithm and it can, in theory, work out what it might be listening to. the's the idea behind shotspotter, that a computer can detect a gunshot and then tell the police the location it was fired from. small mics are placed around a neighbourhood. when a gunshot is fired the mike picks up the sound, how long it takes to reach the senses and from which direction, effectively triangulating the shot. shotspotter was founded on the west coast in america in the mid— 90s, in that cradle of american innovation, silicon valley. the company has agreed to give the bbc access to show me how the system works and why they believe it is needed. what they believe it is needed. what makes the _ they believe it is needed. what makes the system _ they believe it is needed. what makes the system so - they believe it is needed. “wrist makes the system so compelling, we believe, is that in many communities that suffer from ongoing persistent gunfire, people for a lot of reasons don't call 911 which means there is no police response which means that communities met —— start to this trust police. met -- start to this trust olice. ~ ., ., police. we have some areas riaht police. we have some areas right here- _ police. we have some areas right here. this _ police. we have some areas right here. this is _ right here. this is shotspotter's - right here. this is - shotspotter's incident right here. this is _ shotspotter's incident review centre. ginger is one of the analysts. centre. ginger is one of the analysts-— centre. ginger is one of the anal sts. ., , analysts. that is the sound we hear analysts. that is the sound we henr when _ analysts. that is the sound we hear when an _ analysts. that is the sound we hear when an incident - analysts. that is the sound we hear when an incident comes l analysts. that is the sound we i hear when an incident comes up, yes. hear when an incident comes up, es. ~ . ., , hear when an incident comes up, es, ~ . ., , hear when an incident comes up, es. ~ . ., , ., yes. when the computer thinks a cunshot yes. when the computer thinks a gunshot has _ yes. when the computer thinks a gunshot has been _ yes. when the computer thinks a gunshot has been fired, - yes. when the computer thinks a gunshot has been fired, her - yes. when the computer thinks a gunshot has been fired, herjob l gunshot has been fired, herjob is to review it and decide whether to dispatch police officers, all in under 60 seconds. officers, all in under 60 seconds-— officers, all in under 60 seconds. , ., ., seconds. this is a waveform which if you _ seconds. this is a waveform which if you are _ seconds. this is a waveform which if you are -- - seconds. this is a waveform which if you are -- if - seconds. this is a waveform which if you are -- if you . seconds. this is a waveform which if you are -- if you doi which if you are —— if you do any kind of audio work, you have said before. we have seen if the sensors have picked it up, or at what direction, to me it doesn't look like gunfire but that is why we also listen to it. in this case, i think you might be right. we have a directional pattern and i'm going to submit it and send it to our gun agency which, it just popped up there. correct. the people in this tiny room are listening to cities across america, there are over 100 of them, and their decision what is a gunshot and what isn't a gunshot is absolutely crucial. it could be the difference between life and death between finding a criminal and not. between life and death between finding a criminaland not. i'm travelling to fresno because i've been told of a shooting incident which proves shotspotter's effectiveness. in 2017, kori ali muhammad was on the run, wanted for murder. he had a hatred of white people and on the 18th of april he decided he wanted to shoot as many white men as he could. 911, state your emergency. it just sounded like there were five gunshots.— five gunshots. how many gunshots? _ five gunshots. how many gunshots? 15 _ five gunshots. how many gunshots? 15 or - five gunshots. how many gunshots? 15 or 16. - five gunshots. how many. gunshots? 15 or 16. fresno olice gunshots? 15 or 16. fresno police officer _ gunshots? 15 or16. fresno police officer bill— gunshots? 15 or 16. fresno police officer bill dooley, i police officer bill dooley, describes what happens next. he lists describes what happens next. he: lists up his weapon and fires four shots and kills our first victim. this is when our very first shotspotter comes out. although there were plenty of 911 calls, they were delayed and unspecific. shotspotter, however, was alerting police to his roots one shot at a time. he starts heading west, he sees a gentleman coming out of his house on the south side of the street so he fires two shots, it misses the individual who came out of his house... {slim came out of his house... gun shots. came out of his house... gun shots- he — came out of his house... gun shots. he continues - came out of his house... gun shots. he continues to - came out of his house... gun shots. he continues to travel down towards fulton and that is where he sees his next big m. so —— victim. he has fired his first two, now he is out on the ground. he fires his next two shots. ~ :, :, , shots. mohammed then runs towards a — shots. mohammed then runs towards a group _ shots. mohammed then runs towards a group at _ shots. mohammed then runs towards a group at a - shots. mohammed then runs towards a group at a bus - shots. mohammed then runs| towards a group at a bus stop and chases an older white man towards a car park as he reloads. towards a car park as he reloeuis-_ towards a car park as he reloads. : ., , reloads. and that is where we have our— reloads. and that is where we have our last _ have our last shotspotter activation.— have our last shotspotter activation. :, ., ., activation. 911, do you have an emergency? — activation. 911, do you have an emergency? yes, _ activation. 911, do you have an emergency? yes, there - activation. 911, do you have an emergency? yes, there is - activation. 911, do you have an emergency? yes, there is a i activation. 911, do you have an. emergency? yes, there is a guy out here bleeding. _ emergency? yes, there is a guy out here bleeding. do _ emergency? yes, there is a guy out here bleeding. do you - emergency? yes, there is a guy out here bleeding. do you knowj out here bleeding. do you know where the _ out here bleeding. do you know where the suspect _ out here bleeding. do you know where the suspect is? - out here bleeding. do you know where the suspect is? he - out here bleeding. do you know where the suspect is? he is - where the suspect is? he is runnina where the suspect is? he is running around _ where the suspect is? he is running around out - where the suspect is? he is running around out here. i where the suspect is? he is - running around out here. three --eole running around out here. three people worse — running around out here. three people worse killed _ running around out here. three people worse killed in - running around out here. three people worse killed in the - people worse killed in the space of 90 seconds that day —— were killed. police identified where mohammed was going and arrested him as he headed towards busy downtown fresno. shotspotter gave us the clear path that he was taking. because of all the 911 calls that were coming in, information is good but it may not be up—to—date. the up—to—date information was shotspotter. 50 up-to-date information was shotspotter.— shotspotter. so for you shotspotter _ shotspotter. so for you shotspotter in - shotspotter. so for you shotspotter in this - shotspotter. so for you - shotspotter in this scenario was essential.— shotspotter in this scenario was essential. oh, absolutely, there is no _ was essential. oh, absolutely, there is no doubt _ was essential. oh, absolutely, there is no doubt in _ was essential. oh, absolutely, there is no doubt in any - was essential. oh, absolutely, there is no doubt in any of- was essential. oh, absolutely, there is no doubt in any of our| there is no doubt in any of our minds that additional lives would have been at risk or lost if we had not apprehended him as quickly as we did. shotspotter is the reason why we were able to apprehend him and stop the killing spree. there are clearly examples of shotspotter system working, even saving lives. and for years it has been used by police forces pretty and controversially. that was until lawyers around the country started to ask questions, difficult questions, about how the attack actually works. they started wondering whether it is as accurate as the company claims and if it isn't, what the consequences are for americanjustice, and those american justice, and those questions americanjustice, and those questions have been loudest here in the city of chicago. took me through, where are the actual shotspotter sensors here? :, , ., , ., here? the round ball being, a black thing — here? the round ball being, a black thing at _ here? the round ball being, a black thing at the _ here? the round ball being, a black thing at the very - here? the round ball being, a black thing at the very top, i black thing at the very top, thatis black thing at the very top, that is the centre up there. how do you feel when you see them? it how do you feel when you see them? :, ~ , ., , them? it makes me angry. michael williams _ them? it makes me angry. michael williams was - them? it makes me angry. - michael williams was released from jail two months ago, having been accused of murder. on may 31 last year, michael decided to take a drive to buy some cigarettes will stop it was a night of protests over the george floyd's murder. there were crowds of people, they were all over the place. �*s what made turn around. someone he recognised from his neighbourhood asked him for a ride back home. he agreed. i stopped at this light. he wasn't even in the car stop two minutes. before another car pulled up and open fired. got him in the head. i was hollering out my passenger, you are right, you ok? he wasn't saying anything that when i glanced up at him from the floor i saw the blood coming down and ijust put the pedal all the way to the floor. michael took the man to hospital where he later died from his wounds. two months later the police knocked on his door stop he was arrested for first degree murder, accused of shooting his passenger in his car. brendan max, michael's lawyer, talks through the case against him. lawyer, talks through the case against him-— lawyer, talks through the case against him. the police had no witness who _ against him. the police had no witness who said _ against him. the police had no witness who said that - against him. the police had no witness who said that they - against him. the police had no| witness who said that they saw michael shoot anyone. they had no weapon, they had very little evidence in this case other than a shotspotter alert which directly led to him been charged and incarcerated in this case. we had two reports from shotspotter. one was signed by one of the expert witnesses.— witnesses. the shotspotter alert placed _ witnesses. the shotspotter alert placed the _ witnesses. the shotspotter alert placed the gun - witnesses. the shotspotter alert placed the gun shot i alert placed the gun shot around the location of michael's car stop it was used as evidence in a case against him. :, , :, as evidence in a case against him. :, , ., :, him. to be a four corner concrete _ him. to be a four corner concrete room - him. to be a four corner concrete room for - him. to be a four corner concrete room for 11 - him. to be a four corner - concrete room for 11 months... with 39 other people and you know you haven't done anything. it does a great deal to you. mentally. ijust it does a great deal to you. mentally. i just couldn't function like a normal human being. it got so bad for me in their, i was on several medications —— on there. ijust saved them up, i was hoping that it would have put me into a deep enough sleep to stop me from breathing. while michael considered taking his own life, fortunately, he did not go through with it. after 11 months injail and after 11 months in jail and despite after 11 months injail and despite shotspotter giving the police a detailed forensic report, or dfr, attesting to the location of the gunshot, the location of the gunshot, the prosecution suddenly withdrew their evidence, the case was dropped. it is well-known _ case was dropped. it is well-known on - case was dropped. it is well-known on a - case was dropped. it is well-known on a dfr l case was dropped. it is i well-known on a dfr and case was dropped. it 3 well—known on a dfr and also our standard contracts that we don't warrant or stipulate to detecting it is called suppressed gunfire and suppressed gunfire and suppressed gunfire and suppressed gunfire is gunfire that happens indoors or gunfire incident that happens in a park. it became very clear at some point in time that without explanation or that description of what we can warrant two and testify to, that was in conflict with the prosecutor's theory of the case. shots fired, evidence withdrawn, charges dropped.— fired, evidence withdrawn, charges dropped. lyndon max, however. _ charges dropped. lyndon max, however, does _ charges dropped. lyndon max, however, does not _ charges dropped. lyndon max, however, does not buy - charges dropped. lyndon max, however, does not buy that - however, does not buy that response. we showed him shop spotter�*s explanation —— brendan max. spotter's explanation -- brendan max.— spotter's explanation -- brendan max. :, ,, , , brendan max. happens indoors or... brendan max. happens indoors or- -- what _ brendan max. happens indoors or. .. what mr— brendan max. happens indoors or. .. what mr clark— brendan max. happens indoors or... what mr clark said - brendan max. happens indoors or... what mr clark said was i or... what mr clark said was two things. _ or... what mr clark said was two things. it _ or... what mr clark said was two things, it was _ or... what mr clark said was two things, it was gunfire i or... what mr clark said was l two things, it was gunfire here so shotspotter worked, he was shot _ so shotspotter worked, he was shot and — so shotspotter worked, he was shot and a report was right but on the — shot and a report was right but on the other hand, he is saying do not — on the other hand, he is saying do not trust our report because the shot— do not trust our report because the shot may have come from inside — the shot may have come from inside a — the shot may have come from inside a vehicle which is one potential— inside a vehicle which is one potential theory of this case and those things are contradictory. and those things are contradicto . �* :, contradictory. brendan max found something _ contradictory. brendan max found something else, i contradictory. brendan max found something else, thatj contradictory. brendan max i found something else, that the algorithm had initially classified the gunshot and michael williams�*s case is a firecracker but a human had reclassified it as a gunshot. however, that detail was not in the forensic report shotspotter gave to the police. and in fact, when i visited shotspotter, the algorithm disagreeing with the human analyst was fairly common. this one is gunfire. _ analyst was fairly common. this one is gunfire. i _ analyst was fairly common. this one is gunfire. i think— analyst was fairly common. in 3 one is gunfire. i think it is a firecracker. we are not under no obligation to go with what it tells us. it will suggest but we're looking at so many other things in such a short period of time and honestly, i don't even look, i am so busy looking at the sensor patterns and all of the senses got skipped and i don't think it is anything. here there is the little pulse and then the big pulse here. i think it is a firecracker i will go ahead and dismiss it as such.— dismiss it as such. during the rocess dismiss it as such. during the process of — dismiss it as such. during the process of defending - dismiss it as such. during the process of defending michael| process of defending michael williams, brendan max began to suspect something. shotspotter claims their system is 97% accurate. brendan max began to wonder was that really true? i want to see how shotspotter is used on the ground and fresno police have invited me along on a night patrol. i am out with officer palomino.— a night patrol. i am out with officer palomino. that was the activation- _ officer palomino. that was the activation. oh, _ officer palomino. that was the activation. oh, that _ officer palomino. that was the activation. oh, that was - officer palomino. that was the activation. oh, that was it i activation. oh, that was it ri . ht activation. oh, that was it right there? _ activation. oh, that was it right there? yes. - activation. oh, that was it right there? yes. shots i activation. oh, that was it i right there? yes. shots fired. 2250 to about _ right there? yes. shots fired. 2250 to about 12 _ right there? yes shots fired. 2250 to about 12 minutes ago right there? ies shots fired. 2250 to about 12 minutes ago so our helicopter is above the address that the shots fired pinged at. we address that the shots fired pinged at— pinged at. we went to the location — pinged at. we went to the location where _ pinged at. we went to the location where shop i pinged at. we went to the i location where shop spotter had detected a gunshot.— detected a gunshot. there were shots fired _ detected a gunshot. there were shots fired on _ detected a gunshot. there were shots fired on the _ detected a gunshot. there were shots fired on the street - shots fired on the street somewhere shotspotter. that is where the ginger ammon was pinpointing it. this is where it was, this is where the shotspotter was indicating. so underneath this tree where it thought the shot that happened? yeah, it said... 0k. 0k. 0k. ok. so ok. ok. so you have had a look for casings- _ ok. ok. so you have had a look for casings. have _ ok. ok. so you have had a look for casings. have not _ ok. ok. so you have had a look for casings. have not found i for casings. have not found any. for casings. have not found an . for casings. have not found any-- do _ for casings. have not found any-- do you - for casings. have not found any.- do you think i for casings. have not found i any.- do you think there any. right. do you think there was a gunshot _ any. right. do you think there was a gunshot here? - any. right. do you think there was a gunshot here? i - any. right. do you think there was a gunshot here? i can't i was a gunshot here? i can't really say — was a gunshot here? i can't really say but _ was a gunshot here? i can't really say but if _ was a gunshot here? i can't really say but if there i was a gunshot here? i can't really say but if there is i was a gunshot here? i can't really say but if there is no | really say but if there is no evidence of a gunshot... yeah,. so was that like a typical type of call—out from shotspotter? yeah, that's pretty normal. yeah. :, , ~ yeah. yeah, interesting. we look, yeah. yeah, interesting. we look. don't _ yeah. yeah, interesting. we look, don't find _ yeah. yeah, interesting. we look, don't find anything, i look, don't find anything, don't get any, can't find any evidence. no house is struck, no vehicles struck, no other callers. the police tell me this kind of scenario is common when a shotspotter alert is created, it's often hard to know when a gunshot has actually been fired on the ground. that makes trying to work out how effective shotspotter is tricky. we wanted to _ shotspotter is tricky. we wanted to really - shotspotter is tricky. - wanted to really get up the question of the operational value of shotspotter so we looked at about 50,000 shotspotter alerts over a period of 1.5 years and we found that it only about 9% of those shotspotter alert responses, as the police department record having developed some evidence of a gun related crime. did developed some evidence of a gun related crime.— gun related crime. did that surrise gun related crime. did that surprise you? _ gun related crime. did that surprise you? well, i gun related crime. did that surprise you? well, a i gun related crime. did that surprise you? well, a 996 i surprise you? well, a 996 success _ surprise you? well, a 996 success rate _ surprise you? well, a 996 success rate in _ surprise you? well, a 996| success rate in developing evidence of a gun crime does not look to me like an operational value that necessary outweighs the cost and risks of the use of shotspotter.— and risks of the use of shotsotter. , , . :, shotspotter. the inspector general of _ shotspotter. the inspector general of chicago - shotspotter. the inspector general of chicago said i shotspotter. the inspector| general of chicago said that they believe only 9% of dispatchers, there is any evidence of an actual gun crime or even a gunshot. how do you respond to that? i’sre or even a gunshot. how do you respond to that?— respond to that? i've read this re ort a respond to that? i've read this report a few — respond to that? i've read this report a few times _ respond to that? i've read this report a few times and - respond to that? i've read this report a few times and what i report a few times and what they are stating is that there is a 9% reported evidence of something being found. is a 996 reported evidence of something being found. right. it does something being found. right. it does not _ something being found. right. it does not mean _ something being found. right. it does not mean that - something being found. right. it does not mean that there i it does not mean that there wasn't evidence found. but that leads to the _ wasn't evidence found. but that leads to the next _ wasn't evidence found. but that leads to the next kind _ wasn't evidence found. but that leads to the next kind of- leads to the next kind of obvious follow—up question, if it is so difficult to work out whether a shot has actually been fired on the ground, how does shotspotter know with such confidence that 97% accurate? on our right along, i saw for myself. shotspotter says this figure is accurate because the police officers themselves are able to listen to the noise recording and feed this back to them, something they called —— ground truth. but is part of the feedback you are basing that on? :, , ., that on? that is, we are relying _ that on? that is, we are relying on _ that on? that is, we are relying on ground i that on? that is, we are relying on ground truth | that on? that is, we are i relying on ground truth from agencies to tell us when we miss, when we missed detections or classifying. miss, when we missed detections or classifying-— or classifying. other people have said — or classifying. other people have said about _ or classifying. other people have said about the - or classifying. other people have said about the general state of 97% that it is not rooted in scientific rigour, i.e., it has not been scrutinised, peer reviewed. do you think that is fair? it is certainly _ you think that is fair? it is certainly a _ you think that is fair? it is certainly a factor - you think that is fair? it is certainly a factor that i you think that is fair? it is certainly a factor that has| you think that is fair? it 3 certainly a factor that has not been an academic peer review of the service but i would push backin the service but i would push back in saying it is not been analysed. it has been analysed 20 years across 100— plus customers that are using it every single day.— customers that are using it every single day. here's the problem _ every single day. here's the problem with _ every single day. here's the problem with that. - every single day. here's the problem with that. often, i every single day. here's the i problem with that. often, it's pretty hard to tell whether a gunshot has been fired by simply listening to the audio. 50 it's actually pretty so it's actually pretty difficult to know whether there was a gunshot.— was a gunshot. yeah. it definitely _ was a gunshot. yeah. it definitely could - was a gunshot. yeah. it definitely could have i was a gunshot. yeah. it i definitely could have been was a gunshot. yeah. it - definitely could have been and it's just we don't have anything to prove that it was so we just clear up the call and that's pretty much it. right, just from listening to it. right, 'ust from listening to it. , , ., ~ right, 'ust from listening to it. did you think it was? it sounded _ it. did you think it was? it sounded like _ it. did you think it was? it sounded like one. - it. did you think it was? it sounded like one. yeah. l it. did you think it was? it - sounded like one. yeah. sounded like one but _ sounded like one. yeah. sounded like one but who _ sounded like one. yeah. sounded like one but who knows _ sounded like one. yeah. sounded like one but who knows for - like one but who knows for sure. , ., ., ., like one but who knows for sure. ,, ., ., ., sure. right, you are not added -- exoert- _ sure. right, you are not added -- expert. analysed _ sure. right, you are not added -- expert. analysed for - sure. right, you are not added -- expert. analysed for 20 - -- expert. analysed for 20 ears -- expert. analysed for 20 years across _ -- expert. analysed for 20 years across 100 _ -- expert. analysed for 20 years across 100 plus - -- expert. analysed for 20 - years across 100 plus customers that are _ years across 100 plus customers that are using it every single day~ — that are using it every single da . ~ ., ~ that are using it every single da . ~ . ~ . ~' that are using it every single da. .~ ., ., day. what mr clark had to talk about there _ day. what mr clark had to talk about there was _ day. what mr clark had to talk about there was marketing, i day. what mr clark had to talk about there was marketing, it| about there was marketing, it was not — about there was marketing, it was not science, _ about there was marketing, it was not science, and - about there was marketing, it was not science, and to - about there was marketing, it was not science, and to hearl was not science, and to hear the — was not science, and to hear the ceo _ was not science, and to hear the ceo of— was not science, and to hear the cso of this— was not science, and to hear the ceo of this corporation l was not science, and to hear. the ceo of this corporation say that is— the ceo of this corporation say that is the _ the ceo of this corporation say that is the basis _ the ceo of this corporation say that is the basis for— the ceo of this corporation say that is the basis for the - that is the basis for the claims _ that is the basis for the claims they've - that is the basis for the claims they've made i that is the basis for the| claims they've made for that is the basis for the - claims they've made for many years. — claims they've made for many years. from _ claims they've made for many years, from the _ claims they've made for many years, from the evidence - claims they've made for many years, from the evidence that| years, from the evidence that has been _ years, from the evidence that has been used _ years, from the evidence that has been used not _ years, from the evidence that has been used not only- years, from the evidence that. has been used not only against michaet— has been used not only against michael but _ has been used not only against michael but against _ has been used not only against michael but against hundreds i has been used not only againstl michael but against hundreds of defendants _ michael but against hundreds of defendants around _ michael but against hundreds of defendants around the - michael but against hundreds of defendants around the country, | defendants around the country, it's outrageous. _ defendants around the country, it's outrageous. [— defendants around the country, it's outrageous.— it's outrageous. i can't breathe! _ it's outrageous. i can't breathe! following - it's outrageous. i can'tj breathe! following the it's outrageous. i can't - breathe! following the death of georae breathe! following the death of george floyd — breathe! following the death of george floyd in _ breathe! following the death of george floyd in may _ breathe! following the death of george floyd in may last - breathe! following the death of george floyd in may last year, | george floyd in may last year, the use of shotspotter became even more controversial is trust in the police was at an all—time low. trust in the police was at an all-time low.— trust in the police was at an all-time low. we need to steer them away _ all-time low. we need to steer them away from _ all-time low. we need to steer them away from technology - all-time low. we need to steer| them away from technology and to the people. in them away from technology and to the people-— to the people. in chicago, activists — to the people. in chicago, activists argue _ to the people. in chicago, activists argue the - to the people. in chicago, activists argue the tech i to the people. in chicago, activists argue the tech is | activists argue the tech is disproportionately deployed in black and brown communities so could be dispatching polyester neighbourhoods where they think a gunshot has been fired, guns drawn, when in fact there has not been. drawn, when in fact there has not been-— drawn, when in fact there has not been. ~ ., not been. we might not get the answers that — not been. we might not get the answers that we _ not been. we might not get the answers that we want. - not been. we might not get the l answers that we want. alexandra is overseeing _ answers that we want. alexandra is overseeing today's _ answers that we want. alexandra is overseeing today's meeting . is overseeing today's meeting and wants chicago's shotspotter contract to be cancelled. it is sendina contract to be cancelled. it is sending police _ contract to be cancelled. it is sending police in _ contract to be cancelled. it is sending police in too, - contract to be cancelled. if 3 sending police in too, like, these situations that they expect to be hostile, there to be a gun —— alyxander godwin. because of where this is deployed they are expecting a black all latina presently holding the gun. people are big stop and frisk by police, because they happen to be in an area where shotspotter is deployed and where the alerts are going on. why are we paying millions of dollars on something that sometimes works? people almost want to save the real problem would be officers showing — real problem would be officers showing up trigger—happy, that is something we immediately do a dfr _ is something we immediately do a dfr on. — is something we immediately do a dfr on, we have to do a dfr on because _ a dfr on, we have to do a dfr on because those are really in audible — on because those are really in audible things. we don't see that, — audible things. we don't see that, we _ audible things. we don't see that, we don't see that. it's not — that, we don't see that. it's not in — that, we don't see that. it's not in the _ that, we don't see that. it's not in the data. it'sjust not in the — not in the data. it'sjust not in the data. not in the data. it's 'ust not in the datafi not in the data. it's 'ust not in the data. police across the country to — in the data. police across the country to believe _ in the data. police across the l country to believe shotspotter is effective. fresno is looking to expand shotspotter into other areas.— to expand shotspotter into other areas. to expand shotspotter into otherareas. , , other areas. this expansion is aoinu other areas. this expansion is auoin to other areas. this expansion is going to be — other areas. this expansion is going to be close _ other areas. this expansion is going to be close to _ other areas. this expansion is going to be close to $1- other areas. this expansion is going to be close to $1 million a year, the city of fresno is paying for this service. it's got to be worth it. it's gotta be worth the money. and if we ever find out it's not worth the or inaccurate or hurting our efforts instead of helping our efforts instead of helping our efforts instead of helping our efforts then i'm going to look into getting rid of it but right now, it is proving to be very useful. {lin right now, it is proving to be very useful-— very useful. on our right alon: , very useful. on our right along. we _ very useful. on our right along, we came - very useful. on our right along, we came across l very useful. on our right along, we came across a very useful. on our right - along, we came across a group in an area they did not have shotspotter. d0 in an area they did not have shotspotter.— in an area they did not have shotsotter. , ., ~ ., shotspotter. do you know where the gunshots _ shotspotter. do you know where the gunshots were _ shotspotter. do you know where the gunshots were coming - shotspotter. do you know where | the gunshots were coming from? from the orchards.— from the orchards. they 'ust heard shots i from the orchards. they 'ust heard shots being i from the orchards. they 'ust heard shots being fired. h from the orchards. theyjust heard shots being fired. do | from the orchards. theyjust i heard shots being fired. do you feel safe here?— feel safe here? no. in california, _ feel safe here? no. in california, we - feel safe here? no. in california, we have i feel safe here? no. in| california, we have the feel safe here? no. in - california, we have the worst gun violence. i hear every single day there is another article about someone getting shot. it'sjust article about someone getting shot. it's just terrible, article about someone getting shot. it'sjust terrible, man! let me tell you something, most of the _ let me tell you something, most of the problems out here in fresno _ of the problems out here in fresno are due to the man however— fresno are due to the man however the fresno police department have. cannot have one crew — department have. cannot have one crew here and two crews over— one crew here and two crews over there. so one crew here and two crews over there-— one crew here and two crews over there. i. ., . over there. so you more police? well, yeah! _ over there. so you more police? well, yeah! i— over there. so you more police? well, yeah! i honestly _ over there. so you more police? well, yeah! i honestly do! - well, yeah! i honestly do! clearly. _ well, yeah! i honestly do! clearly, there are people who feel unsafe in their own neighbourhoods for whom shotspotter could be a welcome piece of ology. and yet, if it is not so accurate, this could have huge knock—on effects for the criminaljustice system. in the criminal 'ustice system. in the criminaljustice system. in the last four or five months i'm aware of dozens of chicagoans who have been arrested based on shotspotter evidence. i'm sure that has played out in cities across the country. played out in cities across the count _ ,, ., ,, , ., played out in cities across the count . ,, ., , ., country. shotspotter needs to be dismantled _ country. shotspotter needs to be dismantled because - country. shotspotter needs to be dismantled because it's - be dismantled because it's doing _ be dismantled because it's doing more damage to us than anything _ doing more damage to us than anything. i mean, many of us i can end— anything. i mean, many of us i can end up— anything. i mean, many of us i can end up in the countyjail? but shotspotter can get police officers to gunshots more quickly. the technology does save lives. quickly. the technology does save lives-— quickly. the technology does save lives. ~ . , ,, ., save lives. what is shotspotter only saves _ save lives. what is shotspotter only saves one _ save lives. what is shotspotter only saves one life? _ save lives. what is shotspotter only saves one life? in - save lives. what is shotspotter only saves one life? in a - save lives. what is shotspotter only saves one life? in a given| only saves one life? in a given year? is it worth $1 million? in our view, it is, because you cannot put a price tag on the human life.— cannot put a price tag on the human life. ., , ., human life. ultimately, though, until shotspotter's _ human life. ultimately, though, until shotspotter's reliability - until shotspotter's reliability has been independently established, there will continue to be questions about whether this surveillance technology should be used so widely. skies have cleared across some parts of the country and it's even dried out but in other areas, it's raining again and the next weather front is currently moving into western parts of the uk and the whole weekend is going to be very changeable, from rain to sunshine back to rain again. so here's the satellite picture, and you can see lots of weather systems circling around the north atlantic, some of them moving in. this is the one that's over western parts of the uk right now so if it's raining where you are at this very moment, it's as a result of this weather front, and you can see it here through the early hours of the morning. the rain will be heaviest around south—western scotland, wales and also the south—west of england. in some areas, there could be 20, 30, maybe even 40mm of rain. at the same time — and this is 7am — it's dry in newcastle, hull and just about dry in london as well. but watch the weather front — it moves into central parts of the uk and then pushes eastwards by late morning and certainly by lunchtime, the bulk of that rain is out in the north sea and the weather improves across most of the uk. it's not going to be completely dry — there will be some showers around — but there's certainly going to be a lot more sunshine around the second half of the day. 15 in london, around 11 degrees for belfast and also glasgow. then on saturday night, a wind of opportunity, a window of drier weather before the next area of low pressure sweeps in. and just certainly worthy of a mention — it's the fact that the clocks go back early hours of sunday. so here we go, sunday's weather map. here's the low pressure moving into the uk. now, a lot of isobars there, pressure lines, so that means there's going to be quite a strong wind blowing into western and south—western parts of the country — gale force winds, in fact. here's that band of rain in the morning. and then by the time we get to lunchtime, the bulk of that rain, again, is out in the north sea and it dries out, not completely — some areas, particularly around the irish sea, northern ireland here, we will have showers. now, the good news is for some of the trick—or—treaters, at least, that the skies will be clear enough and i think there'll be some drier weather around as well, but not completely dry — always some showers about. and the forecast shows that the weather will be changeable through the first half of the week but towards the end of the week, things should settle down. bye— bye. hello, welcome to bbc news. i'm rich preston. the top stories: pope francis calls for radical decisions at next week's climate change summit in a special message recorded for the bbc. translation: this crisis lays in front of us radical— decisions that are not easy. but each hurdle also represents an opportunity that cannot be wasted. ahead of the summit, the pope also held an audience firefighters in new york protest as a deadline passes to force them receive a covid vaccine or face suspension from theirjobs. as the row over post—brexit over fishing rights escalates, france says britain's credibility is on the line. and thousands of fans gather to mourn the death of indian star puneeth raj kumar.