The red light thing I can understand why the law exists. Setting up blitzes to catch cyclists doing it when it is statistically pretty benign strikes me as being motivated by an anti-cycling disposition more than any pragmatic rationale though. As has been referenced here before, if 90% of cycling fatalities are the fault of motorists, where are the weekly "don't drive like a bonehead" blitzes? When was the last time you saw a string of cars pulled over at a stop sign for rolling stops?
And as for the bell thing, imagine if they made drivers put a bell on their steering wheel or face arbitrary police stops and 100 dollar fines. Why do we view that as acceptable on bikes but in a car it would be harassment?
The police have a serious hate on for cyclists and for a city hall that is supposedly pro-cycling this summer they've let us down big time