(usatoday)

Diop Kamau's home in a leafy, gated community just north of town is not easy to find — for good reason.



For more than two decades, the 52-year-old former Hawthorne, Calif., police officer has made a living embarrassing cops with a video camera.

Stung by the rough treatment of his father during a 1987 traffic stop by another California department, Kamau turned to a second career recording police across the country in compromising — often abusive — encounters with the public.

Some of the controversial videos made using hidden microphones and cameras found their way to network and cable television, exposing police to deserved criticism. Mostly, the videos helped launch a new generation of public accountability for local law enforcement. One of Kamau's most effective weapons is a battered 1968 Chevrolet Impala, wired with microphones and cameras, that Kamau, who is black,drives to test the racial profiling tendencies of local police on behalf of paying clients.

"Frankly, there are a lot of people with badges and guns who don't like me very much," Kamau says, motioning to the network of surveillance cameras that protect his home from unwanted visitors. "I step on a lot of toes."

Starting with the grainy images first broadcast by Kamau and other pioneer citizen watchdogs — notably the 1991 beating of Rodney King in Los Angeles, shot by a nearby resident— the public surveillance of cops has exploded to potentially include anyone with a cellphone...
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