Sometimes the best gear is something you wouldn't consider: Yourself. Make your presence known. Sitting in a chair for 8 hours will bring on sleep awfully quick. Hourly walk-a-bouts that try to emcompass the entire area help. You become accustomed to where things are and how things are placed. After a round or two you will begin to notice if something looks "out of place". To avoid repetition, reverse the route.

As for the gear, a good flashlight (bigger isn't necessarily better), your radio (FRS?), and a baton seem to be givens.

A Priority Item: Comfortable shoes!!!!