The 21-Foot Rule: Why Knife Attacks Happen Faster Than You Think

A suspect with a knife can close the distance faster than most people realize. The 21-Foot Rule isn’t about a magic number — it’s about the reactionary gap: how long it takes an officer (or anyone) to recognize a threat, make a decision, and respond.

In this video, we break down the history of the 21-Foot Rule and analyze real-world bodycam footage — from sword attacks to sprinting knife charges — showing how quickly these situations unfold, why less-lethal tools sometimes fail, and how officers use distance, tactics, and training to survive.

⚡ What you’ll see:

The origins of the 21-Foot Rule (Tueller Drill)

Why officers often backpedal or reposition

The reality of tasers and less-lethal options

Why officers “shoot to stop the threat” — not to injure

🎥 Subscribe for more real-world breakdowns: @BookedAndBriefed

🚨 Question for you: Before watching this video, how close did you think someone with a knife had to be to be dangerous? Drop your guess in the comments.


📢 DISCLAIMER:
This video is presented for educational, commentary, and discussion purposes under Fair Use (17 U.S.C. § 107). The original footage has been transformed through voiceover, analysis, and editing for the purpose of public awareness, education, and critical conversation.

The intent of this content is not to glorify, sensationalize, or exploit any real-life events. Viewer discretion is advised. Some scenes may be disturbing.

We encourage respectful discussion and critical thinking regarding law enforcement decisions, human behavior, and public safety.

All footage belongs to its original owners and is used here in accordance with YouTube’s Fair Use policies.