The most prevalent crimes are liquor-law violations and petty theft. But other than that, Ames is a very, very safe community. ISU does a really good job of patrolling campus and making sure that students feel safe at all times. Many feel safer walking alone at night on Iowa State's campus than at other campuses they have been to. That says a lot for ISU and the measures they take to make sure people feel safe here.
Although many students hate the Department of Public Safety for issuing an incredible number of parking tickets, they do recognize that DPS does manage to remain effective, as the levels of crime on campus are low and generally nonthreatening. Of course, there is crime, as there is anywhere. But the vast majority of it is not life-threatening, and the amount is so insignificant that students have no qualms about venturing out on campus alone or at night.