Did you get called from the last test?
I interviewed their about three years ago, be
quick and concise with your ansewrs, and back it up with good hard fact. They board consisted of an LT, Capt, Sgt. officers, BU staff, as well as a Chief from the metrowest area.
BUPD's Chief runs the dept. like it was a municipality, which he is a former Chief of. His dept. has final say over anything that goes on on the BU campus. They used to butt heads with Boston an awful lot, as BU owns a lot of Mass. Ave and answers calls up and down it. They are not Boston Specials, they are their own dept and proud of what they do.
My best advice is to be honest, they will try to trip you up to see if you can think on your toes, and don't dig yourself into a hole trying to answer their questions, just answer it and be done.
Good luck to you.