mayor, district attorney and police chief are joining forces to fight hate in the city and putting locals and visitors on notice, it won t be tolerated. grant:kron 4 s dan kerman is live city hall with more on what is planned reporter: san francisco has seen an uptick in hate crimes. now steps are being taken to reverse that. we have no tolerance for haight. not here, not now and not ever. stand together as one against hate, i guess messages of hate and ax of hate. against messages of hate and acts of hate. reporter: to reverse the police would use of undercover officers. we are going to do this and our neighborhoods if someone decides they want to attack them because of what they are wearing the may attack and onto the set francisco police officer. reporter: indicating since the election of donald trump there had been more than 700 hate crimes reported. for every one that reports we hear so many that haight on facebook and-dash to the hear the stories and po