CNN Stars and Stripes Unite A CNN Heroes Special December 6, 2014 03:45:00
Put into use in a year long public program. in mesa, arizona there were 75% fewer use of force complaints. but even those who support the use of body cameras say the jury is still out on how effective they will be. >> bed cody cameras are presid- cameras are not a silver bullet. >> reporter: there is no official count how police departments are using the cameras. but the two primary vendors for the technology say they sold devices to more than 5,000 police departments. but what will also play into how effective these cameras are is the policies departments put in place. one of the aclu's conce...