POLICE OFFICERS HELP!?

I just recently had a ride along for my criminal justice cl and I had a ball. But calling different agencies to request one was hard. One department has a policy stating you have to wear a bullet proof vest ( just because of the liability ) As for my ride along it was rather interesting but nothing serious happened. A cl mate of mine went on one and the officer and him had to respond to an alarm at the local school ( which was on a saturday ) and they both walked the premises of the school to check if everything was A ok. It really does depend on the department policies like stated by the the other guy but also depends on the officer.