In 1983, Dennis Tueller penned an article for SWAT magazine called “How Close is Too Close?” In that publication, he suggested that being within 21 feet of an suspect armed with a knife was the “danger zone.”
Tueller’s thinking was this:
- the average police officer can draw and deliver two center mass hits with a handgun in about 1.5 seconds; and
- a healthy adult male can run seven yards (21 feet) in about 1.5 seconds.
MythBusters recently ran an episode where they “test” bringing a knife to a gunfight, or some such nonsense. Here is their recreation of the drill: