The 21-Foot Principle (Not Rule)
Police One
Primary and Secondary
The Tactical Wire
How To Use Pistol Sights
Warren's Writing
Warren has been published in several magazines and blogs since 2012. He has written over 130 magazine-length articles. Click below to read some of his favorites.
American Cop Magazine
Operation Specific Training
The Devolution of the American Police Officer
Modern Service Weapons