I don't agree with him using his position as a Police Officer to obtain Belle's phone records, but I really don't care either. She gave him no reason to trust him. Whatever.
Just pointing those out above, it seems that it's alright for Belle to push this agenda and bully people (ie, Angelo and Rachel) to risk their jobs and give her that information. But Angelo using his power to do this is wrong? I've read people defending Belle saying that people were dying etc, but the same doesn't apply to Angelo? I'm not saying you were defending her, just wanted to point that out.
4 - It really annoys me how people think Angelo is the bad guy for this. Aden was in the wrong. Aden tried to kill his father and kidnapped two people. I don't care what his reasons were. The fact is he waited until the morning of his first community service before he decided he needed it changed. He would have known in advance when both his exams and community service would occur, but he chose the last minute to do something about it. I don't see why he should have gotten special consideration anyway.