It appears from the way his statement is worded that McQueary claims that he went to both the supervisor of the police and the campus police themselves.
Campus police claims that they have no record of him going to them. I give more credence to the statement of the campus police, but I have heard from a few sources that campus police forces tend to be very corrupt and often bury incidents.
Had McQueary claimed to have gone to the campus police, however, wouldn't that have been in his grand jury testimony and the report?
I have read of cases where campus cops suppressed prosecution of conventional (heterosexual) rapes and other crimes on campus. Read The Five Year Party and learn about just how corrupt the higher education racket is today.