When San Francisco police raided journalist Bryan Carmody's home last year, in a misguided (and illegal) search attempting to track down a leaker, none of the event was captured on police body camera.
This turns out to be by design. A newly released memo reveals that a lieutenant with the investigative services detail specifically told police at the scene, following a captain's orders, that officers were not to use their body cameras for the operation. The only explanation provided in the two-paragraph memo was that the "footage could compromise the investigation."
Translation: "We don't want a record of this illegal shit, so don't use the cameras you're supposed to have turned on."