Trustees were allowed to leave and re-enter the prison without undergoing searches, so trustees smuggled in alcohol, illegal drugs, and weapons; they then sold those items within the prison. Trustees usually bought these items from one another, since they had large amounts of money. Non-trustees, including "do-pops" and "rankers," had to pay trustees in order to get food, medicine, access to medical staff, access to outsiders, and protection from arbitrary prison punishments. Therefore non-trustees did not have large reserves of extra money.