The car in the parking lot is not the same as a dorm room. I was speaking about the search of the vehicle. For a dorm room probable cause is needed for search. Smell of weed is probable cause to search the whole dorm room. That then would lead to “Reasonable Articulable Suspicion” that the marijuana was brought on campus in the vehicle, and it could then also be searched. However, if there is no probable cause,” and there wasn’t a smell of weed, the only room with consent / permission that can be searched would be the person’s specific bedroom. If there is common areas or living room areas or a shared kitchen space then all people living in the residence have to give consent. If one person says no then police can’t search without PC. If all five consent to search the whole dorm room, all people that reside in the dorm room must be present during the search so they can speak up and tell the police to stop in case they change their minds during the search, as they have a right to stop the search at any time.