AEP = Alternative Education Program. It is like regular school but located elsewhere off your regular school-campus. In AEP, you do not "gain the education like the ones on regular campus." Well, obviously, they don't give a shit if they're in AEP. Most AEP schools require 'students' wear a uniform which in the most part is a white tee and khaki's, which makes the group look more dangerous if they're walking in large groups.
Bob: He's in AEP because he threatened Susie since she didn't give him her math homework. He's probably getting raped right now in AEP.
Tom: Ah, probably.