lisa bernard, al jazeera, san francisco. >>> thousands gathered in new york to pay their final respects to brian moore. shot while questioning a convicted criminal. his death is a reminder of the real dangers police officers face. christiankristin saloomey has more. >> prosecutors say this man demetrius blackwell shot moore in the face after the officer approached him for questioning. last year has been tough for nypd. >> we hadn't had a police officer death for four years. then we had two who were assassinated then officer moore was killed tragically in the line of duty, doing what we ask cops to do. >> during the month of demonstrations, police officer's duties are being scrutinized. >> we have new york, ferguson, chicago, baltimore there have been incidents now everywhere across the country. it's been apparent i think to the country that there's been a lot of bad stuff that's got on. >> the change in public standing is not lost on police officers present and past. >> it's terrible. almost why would you want to be a cop in this day? >> reporter: still at the precinct where moore worke

lisa bernard is in san francisco with more on that. lisa. >> reporter: john, in a city that prides itself on its progressiveness, authorities are reviewing 3 to 5,000 arrests and prosecutions for evidence of police bias based on race and sexual orientation. outside the san francisco hall of justice word that the san francisco police department is being investigated for racial bias is welcome news to mandy shabaz. >> the investigations are long overdue. >> the task force will investigate arrests the district attorney wants to know if there is a deeper cultural bias in the department. >> if there were people that were wrongfully convicted or they were wrongfully arrested, we have both a legal and a moral obligation to address it. >> the city's public defender jeff hidachi says hundreds of his clients could be affected. former officer ian ferminger in one an officer asks do you celebrate kwanzaa in your school, the response was yes we burn the cross at our school and then we celebrate whitemas. hidachi says in a city where the african amer

lisa bernard reports. >> reporter: san francisco residents take to the streets of the city they considere but fear they will have to leave. >> we will fight to stay! don't take our right to live away! >> reporter: rents are skyrocket skyrocketing here a result of the tech boom. headlines every day about the complicated housing policies that are leading to confrontations evictions, lawsuits headaches, and heart aches. claudia is one of those caught in the cross hairs. the school teacher has lived in a san francisco neighborhood for fine years. soon after a new owner bought the building she lives in she received an eviction notice. >> i had an instant panic, and i started looking on craigslist and looking at wow, i have 120 days to move. i need to find a place right away. >> reporter: and she is not the only one. the rent board says the number of eviction notices filed with the board has gone up 55% in the last five years. it's a common story here where the tech economy is bringing in new residents and big sums of money. >> under the ellis act can't he buy a building and decide he is going

lisa bernard reports. >> san francisco residents take to the streets of the city they consider home, but fear they will have to leave. >> we will fight oh to stay, don't take our rights to live away. >> rents are skyrocketing here, a result of the latest tech boom. one landlord asked a tenant for a rental increase of 400 percent. headlines every day about the complicated housing policies that are leading to confrontations vices lawsuits, headaches and heartaches. claudia is caught in the crosshairs. she has lived in a san francisco neighborhood rich with la taken know culture for nine years. soon after a new owner bought the building, she received an eviction notice. >> i had an instant panic and i started looking at wow, i have 120 days to move. i need to find a place right away. >> she's not the only one. the san francisco rental board said the number of eviction notices filed with the board has gone up 55% in the past five years. her new landlord works for google. he did not responsibility to our attempts for comment. it's a common story here where the tech economy is bringing in

. >> i'm lisa bernard. san francisco's housing market is in transition.e'll introduce you to one schoolteacher fighting an eviction. >> it's not fair to pick on the disabled, because this is a very stressful feeling to be evict. >> evictions are up over 50% in the past five years. many long time residents say they're being forced out of the city as wealthy newcomers move in. the housing supply has never kept up with demand here but now is reaching a critical point. we'll hear from property owners who want to take advantage of the tech boom and get the return on their investment that this hot market is offering. >> rent control for 35-37 years has messed with that whole market economy. >> a tenant that's been living in a unit for 30 years is paying 20% of what a new tenant in that same unit would pay. >> the growing tension over long standing policies here is what we'll look at, is the city's culture changing. san francisco's mayor weighs in on what he's trying to do to alleviate the problem. >> you can watch the full report tonight at 8:00 eastern. >> no