. Have an employee tip line. Set up a confidential way for employees to communicate their co-workers’ suspicious behavior and offer a reward for staff members who provide information to prevent thefts. You could set up an email address for tips as well as a locked-box for tips in the break room. “If people know that their fellow co-workers are watching out for theft, they will think twice before stealing because there are higher odds they will be caught,” says Terrence Shulman, founder of the The Shulman Center for Compulsive Theft, Spending & Hoarding and author of Biting the Hand that Feeds: The Employee