The drug scene is probably the most predictable aspect of Mississippi. The state, the community, and the campus is conservative. Most students have been drinking alcohol since their early high school careers, and it’s easily available on campus at frat parties or from upperclassmen that have already turned 21. Marijuana is, predictably, considered a marginal drug. A majority of students have used it but frown on it somewhat disapprovingly and don’t make a habit of it. Drug users find little resistance on campus from security.
Freshman year is notorious: Midnight fire alarms, destructive behavior, and borderline criminal activity will be a matter of home life for young students. It is probably fair to say that drug use is also heavy. For the most part, though, that use is purged, or at least the users are, by the time you get to the south side. When away from campus, you may be subject to dorm room searches targeting illegal drugs, so if you’re going to use drugs, at least make sure that you’re careful about it.