While the New Jersey Institute of Technology has its own security team, this does not mean students should count themselves as safe. The campus police will keep unsavory characters off of campus, but this doesn't stop students from stealing belongings from each other. These incidents are hard to track down, and students do not have an easy way of finding out what has or has not been happening around campus in terms of thefts, harassment, and other crimes they might want to know about. Also, any attempt to go off campus should be made with at least one friend. Though Newark and NJIT police will both frequent "Frat Row," and Rutgers-Newark (which is less than one block away) has its own security in the area, it would still be very risky for a student to be out and about without company. The risk factor has a significant increase if the student is off campus after dark.
The safest recommendation for students commuting to NJIT or even taking the train home once in a while would be to either drive to campus and park in the NJIT Parking Deck, or travel to and from Newark Penn Station via the light rail. Travel light, when possible.