Since the Rodney King beating in Los Angeles 16 years ago, caught on video by a bystander, civil-rights activists have clamored for the cameras in police cruisers. Progress has been hampered by costs and resistance from police.
Last month, Los Angeles police announced a $5 million plan to put dashboard cameras in 300 police vehicles. Eventually, the department wants to spend $25 million to put cameras in all 1,200 patrol cars.
Last year, the Chicago Police Department began installing patrol car cameras.