" often hinge on conflicting reports of consent that can be complicated by high levels of intoxication"
Exactly, for a lot of students campus life is one long booze fueled party. What exactly are the police supposed to do when recollections are spotty, the accuser and accused say different things and there is no corroborating evidence or witness?
As for asking about clothes I bet they also ask what the accused was wearing as well. Perhaps they just want to interview witnesses and ask questions like "Did you see a woman wearing xyz? Was there a guy wearing abc hanging around her?" etc.
And I'm with TCampbell24, I don't blame the police one bit for declining to answer questions. The time for that was before the 10 day barrage of stories condemning their performance, not after.