Which of the following is a measure for loss prevention?

Installing security cameras is a proven measure for loss prevention as it helps deter theft and improve overall security in a retail or food service environment. The presence of cameras can significantly reduce the likelihood of employee theft, fraud, or trespassing by providing a visual surveillance mechanism. Additionally, if incidents do occur, having video evidence can assist in investigations and lead to appropriate actions being taken.

While offering discounts to employees, increasing menu prices, or cutting staff hours might have financial implications or operational effects, none of these directly address the security aspect of loss prevention in the same way that security cameras do. Cameras actively monitor activities and create a safer environment, making them a critical tool for preventing losses.