Abstract: The Laser Engagement Stun System, which is a man Worn Apparatus is designed for Training exercises in Force-on Force or One-on-One training. The L.E.S.S. system receives and analyzes incoming laser light signals while disregarding ambient light signals from the environment. It then generates a High Voltage low amperage pulsed shock or stun that is delivered to the person wearing the LESS. Each person in the exercises will be equipped with the Laser Engagement Stun System. A component and vital part of the system is the weapons mounted Visible Laser Light device attached to each persons weapon. The attached laser light device will be activated when the individual person pulls the trigger on their weapon and cause a Blank Round to be discharged or from a Dry Fire.