I used to regularly ride a large road with three lanes in each direction that had a set of lights where every light turned red just when you got to it if you did the speed limit for like four lights in a row and I knew that, but I couldn’t speed because there was a cop at the first light on the scooter. When the third light turned red, he just turned on his lights and went through it. Even the police run red lights.
But I’ve also seen police sitting at a T intersection, having to turn one way or the other with no indicator, and I’ve seen police use the indicator when the road has a curve, even though they’re not actually turning they’re just following the road.