Yes and no. If the camera is on and then shuts off for a few moments it does make the officer look like they are trying to hide something. Also, just having this step in the right direction will hopefully set up a time in the future when all dealings with the police have to be recorded by law.

A similar thing happened in my home town. A state law said that all police cars must have cameras for DUI stops. One of the counties in the state that wrote the most DUIs kept saying they couldn't afford to put cameras in all of the cruisers. Finally, a judge started throwing out all DUIs where the camera wasn't installed. Cameras were all installed and working in short order.

Technology has made it so easy to record all interactions that if the police are not doing it then the default reason is they are trying to hide something.