Recordings aren&#x27;t on all the time.  Think about the rest of the picture.  These guys do highly questionable (shooting people under dubious circumstances) and get paid leave.  They sure as heck don&#x27;t have their entire patrol recorded.  If the union can negotiate the former the latter is a cakewalk.<p>They&#x27;re typically set up so when lights or sirens come on then the audio&#x2F;video recording gets turned on and stays on for an amount of time after lights&#x2F;sirens turn off which is usually a minute or more.  This is to discourage behavior like using lights&#x2F;sirens to run red lights or bypass traffic jams.   Years ago cops used to warn people who were going too fast but not fast enough to be worth a ticket by flashing their lights.  They don&#x27;t do this anymore because the chief doesn&#x27;t like to see them giving out warnings based om something like &quot;If you can stop the guy then stop him, who knows, you might get lucky and he&#x27;s got a bong in the passenger seat, you don&#x27;t catch any fish without a line in the water&quot;