"I would first tell my student colleague that having the questions before the interview was wrong and decline even looking at them. I'd also want to try to find out where they got them. No matter how they answered that question, I would give them the option of approaching the professor and apologizing on their own. I would also let them know that I would be bringing it to their attention as soon as possible. We all have an equal playing field as students of this program, and some of the class cheating would be just wrong in my mind. I love that your program has a well-documented academic dishonesty policy, and I want you to know that I would always take it seriously if I'm fortunate enough to be accepted here. In this situation, I'm confident that my student colleague would be thankful for my actions, though it may take some time for them to have that mindset. But in the end, I would know that I was doing the right thing, both for them and the institution."