efforts to save red squirrels in scotland could be helping native populations recover, but warn that measures to control grey squirrels will have to continue for some time. coming up later this hour in hardtalk — stephen sackur speaks to baroness helena kennedy, who has been trying to loosen the grip of the patriarchy in the british legal system for five decades. borisjohnson must "lead or step aside", senior tory and former minister tobias ellwood has told the bbc. it comes as some conservative mps say they've been inundated with emails from constituents, angry about reports that downing street staff held parties during lockdowns. the government has urged people to reserve judgment until senior civil servant sue gray's inquiry is finished. meanwhile labour leader sir keir starmer said it was now in the "national interest" for the prime minister to resign following events in downing street during strict lockdown measures. the moral authority matters in relation to enforcing the covid rules but we've got other massive challenges facing this country. massive challenges. we have a prime minister who is absent, he is literally in hiding at the moment, and unable to lead. and so that is why i have concluded that he has got to go. and of course there's a party advantage in him going, but actually it is now in the national interest that he goes. so it is very important now that the tory party does what it needs to do and gets rid of him. claire pearsall is a conservative councillor in kent, who was formerly a home office special adviser. she spoke earlier to my colleague joanna gosling who started by asking whether she'd had a chance to speak to local residents in her area. i've had a number of conversations this week. the general mood is that people are incredibly angry. they have abided by the rules all the way through and faced some real hardships. but they did it because they were told to, it was the right thing to do, and to protect their family and friends and people in my village. and to see the prime minister's team and the prime minister himself flout those rules has hit very hard. sir keir starmer has said this morning that it is time for borisjohnson to go. he says of course there is a party advantage for labour in him going, but actually says it is now in the national interest that he does. do you think that this does transcend party politics now? yes, i think it does. i know conservative supporters who are equally as angry as those who support the green party or the liberal democrats, for example. so i think this does transcend those kinds of barriers. and colleagues are going to have to work out what it is they want from the prime minister going forward, and that has to happen quickly. what do you think should happen? i think there is more to come out and i think it is not going to be very long before we see yet another revelation, so the prime minister now needs to think very long and hard as to whether he is doing the rightjob for the country, and certainly for the party. do you think he should go? i think it is probably time for him to move on. i think that a number of colleagues now are looking at that as an option. we have seen some very senior tories come out this morning and sayjust that, and i agree with them. our political correspondent nick eardleyjoins me now. these events are now under investigation — is pressure growing on the pm? this weekend is quite an important gauge of that four tory mps. they are back in their constituencies, trying tojudge the are back in their constituencies, trying to judge the public mood, are back in their constituencies, trying tojudge the public mood, and from the ones i've been speaking to her, it doesn't seem great, quite frankly. a former cabinet minister was saying the story yesterday about the party the night before the duke of edinburgh's funeral made things worse, they thought the reception they were getting was terrible, and it is interesting another former ally of the prime minister, a brexit supporter, said they didn't think there was any way the prime minister could lead them to the next election. there is a growing list of things that are being looked at by the senior civil servant sue gray. the question is whether the mood amongst tory mps starts to harden, whether they feel under more pressure to act, and the labour leader urging them to do so this morning, saying it would be in the national interest. we are not getting much from number ten, they are saying wait for the investigation to come back, but they must be feeling the heat this afternoon. must be feeling the heat this afternoon-— must be feeling the heat this afternoon. ~ ., ., , afternoon. what do the next few days look like? ithink— afternoon. what do the next few days look like? i think the _ afternoon. what do the next few days look like? i think the start _ afternoon. what do the next few days look like? i think the start of - afternoon. what do the next few days look like? i think the start of next - look like? i think the start of next week will be _ look like? i think the start of next week will be important _ look like? i think the start of next week will be important to - look like? i think the start of next week will be important to see - week will be important to see exactly how tory mps feel, if they have decided they need to act against the prime minister or not. i should point out there are some allies of borisjohnson saying they think the public is prepared to wait for the investigation to come back before making their minds up. we may get that investigation next week, we don't know for sure, but there have been ministers suggesting it would been ministers suggesting it would be soon, and that would be a big moment, because if the senior civil servant looking at this, sue gray, says the prime minister did something wrong, there was a problem in numberten, or something wrong, there was a problem in number ten, or there were other events in the prime minister was at them, i think it adds more pressure to him. is it guaranteed that boris johnson goes? absolutely not, because he still has his supporters, those who think he is an electoral asset, there are still a number of measures that would need to be taken, steps gone through, for him to be removed from office by the conservative party, but he is under a lot of pressure, more than he has ever been under as prime minister. this inquiry by sue gray, which the government keeps referring to and asking everyone to be patient until those findings are published, that is getting bigger and bigger as more events come to light. that is not her role to be judge and jury on this. it is a fact—finding inquiry. you are right. nobody expects her to come back and say that crime was committed, is not her remit tojudge whether borisjohnson has broken the rules, ministers have to follow the ministerial code, it is a fact—finding mission. isuspect ministerial code, it is a fact—finding mission. i suspect we will be poring over the language of it. if other events are brought to light, if there is a suggestion the prime minister knew about things that broke the rules, or if he broke the rules, i think that would add to the rules, i think that would add to the pressure. one senior tory said to me last week if there is a suggestion the prime minister has broken the rules or done something seriously wrong, it could be terminal. i'm joined by chris hopkins, political research director at the polling company savanta comres. you have been polling members of the public. what have you asked them? our latest was a straight forward voting intention and it showed for the first time in a long time a ten point labour lead. we haven't seen a ten point labour lead since 2019, in a very different political climate, brexit and change uk. ultimately what these figures show with this ten point lead and also a large labour vote share, voters are going away from the conservative party in the wake of partygate. this has been bad for the conservatives. if the prime minister is seen to be an electoral asset for the conservative party, it doesn't seem to be the case any more. those conservative backbenchers that owe borisjohnson their job backbenchers that owe borisjohnson theirjob after the 2019 election, if he takes them to the next election and they lose their seat, they will not be very happy. constituents have been contacting their mps of all stripes to say they are unhappy with the way the government ministers and officials, advisers, have been behaving. how is it reflected in the voting intentions of people who have been conservative supporters in the past? what we have seen is thatjust two thirds of people who voted conservative in 2019 are sticking with the party, some are going to other parties and a large proportion are undecided. those who voted labour in 2019, 87—90% of their vote is retained. considerably more people are leaving the conservatives and labour. some of them are going to other parties and they will be considerably more difficult to win back and it may take a change of leader in order to do so. what back and it may take a change of leader in order to do so.- leader in order to do so. what is the public _ leader in order to do so. what is the public saying _ leader in order to do so. what is the public saying about - leader in order to do so. what is the public saying about whether| leader in order to do so. what is i the public saying about whether the prime minister should resign? ewen prime minister should resign? seven in ten say he — prime minister should resign? seven in ten say he should _ prime minister should resign? seven in ten say he should resign _ prime minister should resign? seven in ten say he should resign in - prime minister should resign? $71 in ten say he should resign in our latest figures published last night. two thirds, 66%, say he should resign on tuesday. we will probably be asking over the weekend is whether he should resign again in the wake of the latest. i think number ten parting on the night of prince philip's funeral will have an effect. the public see that the prime minister is setting the number ten culture. i think if there continues to be revelations and more flagrant breaches of lockdown in number ten then the public do you see that the buck should stop with the prime minister and more and more will say that he should go. for more on the downing street parties and how constituents may be responding this weekend to their mps, go to our website where you can find analysis from our poltiical editor laura kuenssberg. novak djokovic has been detained in australia ahead of a court hearing that will determine whether he can stay in the country. the world men's number 1 tennis player faces deportation after his visa was cancelled for a second time. the australian government has labelled the 34—year—old a threat to public health because he's unvaccinated against coronavirus but his lawyers are appealing, describing the decison as irrational. shaimaa khalil has the latest. free the refugee! once again, novak djokovic is in detention, and once again, the world number one is challenging the cancellation of his visa. in court documents which were released today, we learned that the immigration minister made his decision because the player's presence in australia may foster anti—vaccination sentiment. the tennis star's legal team says the argument was invalid and irrational, and that deporting him would potentially undermine support for the vaccination programme. and while some of djokovic's supporters gathered to back him, there has been little sympathy for the tennis player. i do feel that to make a statement that we are sticking by what we have been calling for the last two years, i feel it is best for djokovic to probably sit this one out. i hope that the government and the judges hold their ground and say, you don't want to get a vaccination and you don't want to follow our rules, then you can't come in. novak djokovic's visa was revoked the first time and he was held here at this immigration detention hotel. more than a week later, he's back. only two days before he is meant to compete in the australian open and defend his title, this is where he will be spending the night and when he does get out on sunday, it won't be to go to practice. he will be in his lawyer's office while a court decides his fate. his rival rafael nadal said the grand slam is not just about djokovic. the australian open is much more important than any player so if he is playing, finally, ok, if he's not playing, the australian open will be a great tournament with or without him. that is my point of view. sunday's court decision is crucial for both sides. the top seed, whose chance at a 21st grand slam rides on it, and a government that has been hugely embarrassed by the mishandling of the saga. shaimaa khalil, bbc news, melbourne. lawyers for the woman accusing prince andrew of sexual assault want to take statements from two people in britain as part of her civil lawsuit against him. virginia giuffre claims the duke — seen here alongside his former wife sarah ferguson leaving the windsor estate earlier today — sexually assaulted her when she was 17. he strongly denies the claims. tsunami waves a metre high have hit the pacific island nation of tonga, after an underwater volcano erupted for the second time in two days. satellite images show the eruption which was followed by darkened skies as the volcano sent black ash into the air. residents have been urged to move to higher ground. ukraine has accused russia of being behind a large scale cyber—attack, that hit numerous government websites. the nato secretary general, jens stoltenberg, has condemned the cyber attack. he said the alliance's experts had been in touch with their ukrainian counterparts on the issue. russia has also arrested members of the revil hacker group. revil were responsible for last year hack which disabled the us colonial pipeline. moscow said it was cracking down on the hackers at the request of the us. the british foreign secretary liz truss has been speaking about the russia ukraine situation. she said russia ukraine situation. she said russia is waging a disinformation campaign to destabilise and justify an invasion of ukraine. she said on twitter, russia must halt its aggression, de—escalate and engage in meaningful talks. there have been talks between russia and the united states, a lot of rhetoric shared between the two. thieves are leaving thousands of opened and damaged packages strewn across the railway tracks in east los angeles after looting goods trains passing through. products that are difficult to move or re—sell, or are too cheap, like covid—19 test kits, furniture and televisions, are just dumped on the tracks. the thefts are affecting major us mail order and courier companies like amazon, ups and fedex. james reynolds reports. if you live in los angeles and your package hasn't been delivered, you might want to check the rail line in the east of the city. freight trains passing through this area have become an easy target for thieves, who leave evidence of their raids all over the tracks. as trains head into a busyjunction, they often slow down or stop, and looters are ready. theyjump on these trains, these locks that these containers have are really sometimes plastic seals, the locks aren't really sturdy strong, you know. they don't care if the train is moving or not. theyjump on the train, pop the lock and just start grabbing they see. all of this has accumulated over the last month alone. looters aim for the most valuable items they can find, ripping through packages and avoiding cheaper bulk cargo items like toilet roll. towards the end of last year, more than 90 containers were vandalised every day. thefts peaked around christmas. according to the rail operator union pacific, over the last year looting along the train line in los angeles county has risen by 160%, costing millions of dollars. the thefts have hit major companies, including amazon, ups and fedex. the rail operator says it has now increased security along the line. the actor alec baldwin has handed over his mobile phone to police investigating a fatal shooting on a film set in new mexico, almost a month after a warrant was issued for the device. the cinematographer halyna hutchins was killed when mr baldwin rehearsed drawing a prop gun while filming the movie rust in october last year. wildlife experts in scotland are hopeful that progress is being made with efforts to save the native red squirrel from extinction. the introduction of the grey squirrel caused them to disappear from great swathes of the uk. alexandra mackenzie reports. the native red squirrel — not a common sight in the uk, but now limited to areas like here in barhill wood in dumfries and galloway. how many red squirrels would you have in this wood? in november last year, we had over 30 — which is an exceptional amount. you know, there's not many places in scotland where you'd find that level. so what makes this the ideal habitat for the red squirrel? principally it's the age of the trees, that they are now producing cones regularly — and that enables food to be available at different times of the year. the larch produces cones in the summertime, the scots pine in the winter. so it gives the squirrels a good, wide feeding pattern. but of course, they're in competition with the grey squirrels. wherever you get the grey squirrels, the reds are going to disappear, unfortunately. for some, the red squirrel project is vital. well, they're beautiful creatures and they're native to the uk so i do believe that, since the grey squirrels are introduced and have wiped them out, or almost wiped them out, it's important to make sure that we can keep our heritage. it's a really nice effort from the local community. the scottish wildlife trust said having a variety of trees benefits the red squirrel, and a predator, the pine marten, helps to control the grey squirrel population. but that is not enough. grey squirrel control is going to be necessary for a long time yet. so that will be the key thing that needs to keep continuing, in a targeted landscape—scale approach. which is tricky and hard work, but it's what is needed if we want to keep our red squirrels. the battle for survival with the more feisty grey squirrel is likely to continue for some time. alexandra mackenzie, bbc news, kirkcudbright. in the uk, the coastguard is celebrating a major anniversary. it was founded exactly 200 years ago. luxmy gopal reports. search and rescue. for 200 years, the coastguard has been searching, rescuing and saving lives. it's such a feeling to be able to help people who've really been at a really low point, and just make that situation at the time a little bit better for them to bear, and then long—term it means somebody goes home who maybe wouldn't have done. originally set up to combat smuggling, her majesty's coastguard was formally established on the 15th of january, 1822. newsreel: there's a certain amount i of mystery about the coastguard - l who he is and what he does. it has worked to keep people safe at the coast and at sea ever since. this is coastguard control. as illustrated in this video from 1972. ahoy there, coastguard here! we'll be down with you in a few minutes. hang on! when we started, it was horseback patrols, looking for smugglers and people like that. that's where the coast and the guard bit comes from. it's changed hugely. we still rely massively on our volunteers, as we have done for almost the entirety of the 200—year history of the organisation. the coastguard now has 3,500 volunteers across 310 rescue teams, in addition to ten helicopter bases. the way the coastguard saves lives at sea has changed almost beyond recognition since its creation 200 years ago, with a new updated radio network and with new technology such as drones and unmanned vehicles playing a growing part in its search and rescue operations. you've got to embrace new technology, you've got to look to improve. you can't sit still and think, "we're doing the best we can." there's always improvements to be made, so we have to look at technology. so we're looking at fibre communications, improving ourfleet to bring in electric vehicles, drone technology and how that can assist in searches, and speed up finding people that are in difficulty. so really, we've just got to be open to change and embrace it and look to improve at any point that we can. to mark the organisation's milestone birthday, 200 throw lines are being cast into the seas around the four nations today, as a symbol of the coastguard's life—saving role, past and present, on our shores and at sea. luxmy gopal, bbc news. andy murray's bid for a first tennis title in more than two years has ended in defeat. he was beaten in straight sets in the final of the sydney classic by russia's aslan karatsev, who ranks number 20. next up for the 34—year—old scot is melbourne and the australian open. england's cricketers have collapsed with the bat against australia at the ashes in hobart. they were dismissed for 188 in their first innings in the final session of the second day. australia lead the series 3—0. mouthguards used in contact sports are being used to protect another part of players�* bodies — their brains. they're notjust any old mouthguards, though. these ones, which are being tested by leeds rhinos rugby league players, are fitted with technology to measure the impact of tackles which may cause concussion. tanya arnold has more. rugby league is a collision sport. you can't change that. but these new mouthguards will gather data on what each player is experiencing. so, a normal gum shield will obviously be to protect the teeth. and these are... these have embedded technologies, so, batteries and gyroscopes and because the teeth and the upper jaw is fixed to the skull, we can then look at how fast and how forceful the heads moving on impact. leeds beckett is leading the study, testing out several different makes to determine which they feel performs the best. we are looking at how these mouthguards perform in a laboratory, so when we hit them with a pendulum, how they perform on the field, when a player gets tackled or doesn't get tackled. so, we're looking at the force, positive force or negative, so the accuracy of them. and then it's also really important to understand the players�* fit, comfort and function, because they have to wear them. they have to embrace the new technology. this is leeds rhinos academy player mackenzie turner being tackled while wearing one of the mouthguards. and this is the data from it. on our graph here, we can see the linear acceleration, which is measured as g—force. and that corresponds to the y axis, which is this direction, through your head. so, it's a negative peak, so, we know that the... the linear acceleration is to the left, so we know that you must have been hit to the right of the... right of his head. the collision was measured at a force of around 25g. they haven't yet put a figure on when concussion occurs. sort of anywhere sort of north of 706 is usually that's when we start to get a bit worried that there might be a concussion there. but, at the minute, we don't really know exactly where that figure is, that value is. it'sjust about, yeah, monitoring it and trying to get an understanding from what players are going through. concussion in sport and its long—term effects have become a big issue but mackenzie admits it's not something he's currently thinking about. i think, long term, yeah, . probably it's good to know. but, you know, when i'm playing and stuff, i don't| really think about that. i just think about playing and doing myjob. - it's a view echoed by england and leeds full—back caitlin beevers who's been playing the game since she was six but she's fascinated by how the information gathered can transform the game. i'm interested in anything factual, scientific, and the fact that we can look at our data and it can actually be brought back to training and how we can save us from hitting those type of impacts. rugby league hopes to roll out the preferred mouthguard to all levels of the game later this year. it's early days in the study, but as more data is collected, so the understanding of what each player's brain is being put through in both matches and training, will grow. tanya arnold, bbc news, leeds. now it's time for a look at the weather with matt taylor. any respite from the damp and the fog i had to deal with this morning? a little bit. it is still very foggy and cold out there for parts of yorkshire, lincolnshire, the midlands, temperatures not above freezing, and that will stay the same the rest of the afternoon, may be lifting into some low cloud. a few sunny breaks here and they are, north—eastern scotland, the far north—eastern scotland, the far north—east of england and the south—west, but here we will see some showers develop this evening. and a wet and windy spell moves south into tomorrow morning. not as cold or foggy south into tomorrow morning. not as cold orfoggy tonight. temperatures around freezing to start tomorrow morning. the rain pushes south tomorrow morning, a bit of a breeze blowing from the atlantic. hello, this is bbc news. the headlines: as details of lockdown parties in downing street continue to emerge, some conservative mps say they're being inundated with messages from angry constituents. labour leader, keir starmer, says it's now in the national interest for borisjohnson to go. we are witnessing every day the broken spectacle of the prime minister mired in deceit and deception, and unable to lead. lawyers for the woman accusing prince andrew of sexual assault want two people based in the uk, including his former assistant, to give evidence in her civil case. the duke of york strongly denies the claims. the eruption of a giant underwater volcano near the island nation of tonga has triggered tsunami waves across the southwestern pacific. the coastguard is celebrating it's 200th anniversary. staff and volunteers across the country have marked the milestone today, by casting throwlines into the seas around the four nations of the uk. now on bbc news it's time for hardtalk with stephen sackur.