The police department in Birmingham, Ala. has seen a 71% drop in citizen complaints -- and a 38% drop in use of force by officers -- since deploying 319 body cameras two months ago.
The cameras have been so effective that the department plans to buy another 300 cameras from Taser International.
"The chief's goal is to get a camera on everybody who wears a uniform," said Capt. William Brewer, who heads up Birmingham Police Department's Technology Division.