The Yellow Jacket Crime Deterrent System is designed with your safety as our primary concern. The idea behind the Yellow Jacket Crime Deterrent System is to deter attackers by sending a message that says, "If you try to harm me, you're going to get caught." The Yellow Jacket Marker is the only personal protection device that is designed specifically to positively link an aggressor to a specific crime scene. It takes only a small sample of the paint to link a suspect to a crime.