Rules regarding drug use and underage drinking are heavily enforced by Mercer Police and RAs. Freshmen seem to be under stricter surveillance than upperclassmen, but this may be due to the fact that they are underage and tend to be noisier and less cautious than older students. Drug penalties are harsher than alcohol violations, but drug use on campus is minimal. Thwarting alcohol possession and consumption is usually the focus of Residence Life, and there are firm consequences for getting caught with alcohol on campus or in dorm rooms. Partying on campus does happen, but most people recognize that it is not a smart idea. Random room checks are also sporadically done throughout the year, and anything found that does not belong in dorm rooms (such as alcohol, drugs, candles, or animals) will be confiscated. Health violations will also be noted.
There are rules regarding opposite-sex visitation in residence halls. Though opposite-sex visitors are not allowed after-hours, this rule only seems to be heavily enforced in the freshman dorms. Overnight guests are only supposed to be of the same sex, but students rarely abide by this rule. Residence halls for older students are more private and quiet, so as a result, it is easier for residents to escape visitation restrictions unnoticed. However, regular quiet hours (10 p.m. to 10 a.m.) and 24-hour quiet hours during exams week are strictly enforced in all residence halls. Further information involving rules and policies can be found in the Housing Handbook, which is given to all students upon their room check-in.