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