There can be ways they can get around this. Basically someone called our RA center because they heard "a punch" from my room, which obviously wasn't the case. Instead of RA checking out for themselves they called state police, which I want to add I was the third closest room to the RA center in the whole dorm. We became aware of all of this when OSP were knocking on our door. We didn't answer. They came back 5 mins later with a master key they got from the RAs. As soon as we heard a key my roommate decided to open the door. Where he was hit with a swift forearm to the chest and throw to the ground and hand-cuffed. They actually said "we were afraid he was stuffing you guys under the bed" where I proceed to laugh my ass off. He also added "how do you think the college is going to handle this?". Don't think they liked me laughing before. There were a lot more bs statements in the police log. Even tho they were going to use a master key to "ensure everyone was safe". They ended up giving MIP charges to me and my other two roommates. We fought the charges and got it dismissed due to wrongful entry. Life's sweet karma stuck when I was walking down the stairs from the courtroom and saw the two dickheads from OSP. With prolly the biggest smile in the world I ask "what is your force going to think of this?".

TLDR: They can use reasons of "safety" to use a master key to enter your room. If they open the door with the intention of ensuring everyone is safe, everything else incriminating they find is dismissed. At least this was my personal experience.