The actions of university police are very dependent on how they are set up. There are two categories:
1) Those that are glorified private security firms
2) Those that are actual police with authority to arrest and investigate.
If you go to a school with type (1), they are much more likely to violate these rights as they have no real investigative authority outside the university judicial system. You can sometimes have issues with (2) if they know they will just be referring your case to the internal university judicial system, but they are often more professional in getting any evidence cleanly.
1) Those that are glorified private security firms
2) Those that are actual police with authority to arrest and investigate.
If you go to a school with type (1), they are much more likely to violate these rights as they have no real investigative authority outside the university judicial system. You can sometimes have issues with (2) if they know they will just be referring your case to the internal university judicial system, but they are often more professional in getting any evidence cleanly.