Contraband is anything in the possession of a person that is contrary to the rules and regulations of the institution. Contraband can be divided into three categories: dangerous, non-dangerous and documentary.

Dangerous contraband is anything that can be used as a weapon or to aid in an escape. Examples include guns or gun parts, explosives, magnets, knives, wire, torches, tools, chemicals, razor blades, alcohol, matches, and lighters.

Non-dangerous contraband is any item that has been altered, damaged, in excess of authorized amounts, out of place, can cause clutter, create fire or hygiene hazards, make maintenance and cell searches difficult, or can be used to hide plans for an escape. Examples include gum, cigarettes, games, food, clothing, property, paper, and garbage.

Documentary contraband is documents not received through authorized channels to include legal materials. Examples include newspapers, magazines, letters, and religious tracts.