Campus safety is a high priority for the administration at Xavier, and it shows. Campus police vehicles are on frequent patrol 24 hours a day, and everywhere on campus is well lit, so one can take a midnight stroll without being accosted (unless you're into that sort of thing). The University has in place emergency call-boxes throughout the campus, so that if there ever was any trouble, the campus police are able to respond fairly quickly. As long as you are on Xavier University property, you feel relatively safe. While neighboring streets are not quite as pristine, there seems to be a heavily-enforced bubble that keeps those who live and work at Xavier safe.
The campus police do everything within their means to make sure that everyone on campus can live, work, study, and play in a safe environment. Unfortunately, with crime problems in the surrounding communities, especially Norwood, there is only so much the University can do. On campus is one of the safest places in the county you can be, but unfortunately, the same cannot be said for the streets outside of Xavier, where many students live in apartments and houses.