The Truth About the 21-Foot Rule (What Reaction Time Actually Costs You)

The “21-foot rule” is not a law, a guaranteed safe distance, or permission to use deadly force. In this video, I break down where the number came from and show what actually happens when reaction time, movement, distance, and a real draw from under a real shirt collide. After decades of teaching police recruits, I use a simple drill—and the story of a recruit named Dale and a rubber knife—to show why the number matters less than the decisions made before the attack begins. I also explain how distance buys time, what your reaction-time budget really looks like, and the one free fix that can improve your chances: making the earlier decision. This is a practical discussion of training, safety, the law, and personal responsibility—not a shortcut around sound judgment or legal requirements. 0:00 The twenty-one-foot rule 0:44 Where the number came from 3:12 The drill at real speed 5:26 Your reaction-time budget 7:36 Distance buys you time 9:28 The earlier-decision fix 11:47 Safety, law, and responsibility 12:10 The short recap #SelfDefense #FirearmsTraining #21FootRule #ReactionTime #PersonalSafety