Disagree, particularly with regard to the CU Police.
I clerked for a Boulder judge and we did the preliminary hearing for a case where an ex-husband murdered his ex-wife, in Married Student housing on the CU campus. Campus police did an excellent job as first on the scene - kept a log of everyone in and out of apt, secured suspect’s hands in paper bags, found his car parked 2 blocks away with rubber boat and cinder blocks in it, etc. The Boulder Police took over. Hmm, not such a good job AT ALL (and charges later reduced 2 second degree manslaughter I think when there was a TON of evidence that this guy did it - he was found IN the apartment with the dead ex-wife and 3 year old).
In Boulder the CU police do some nearby off campus things, especially on ’The Hill’ where there are several fraternities and a large sorority house.
Again, pot is legal in Colorado for those over 21, just like liquor. It is not a 24/7 rager.
Most living in dorms on campus are freshmen. Upperclassmen live in houses and apartments surrounding campus. All sororities are off campus but are student groups so follow some university rules, and National PanHell rules do not allow parties with alcohol in any house in the US. Most of the frat houses are not campus groups and answer to their national organizations or answer to no one; there are a few frats that are recognized as student groups and they may or may not have houses.
But the campus police are trained. They do respond to some calls from off campus (student) locations, and those would be included in a cleary report.