Charles R. Campbell has practiced and trained in the martial arts for 35 years. He holds black belt or higher ranks in four different styles of martial arts. He has served as an instructor of defensive tactics and close quarter combat for 32 years. The International Close Combat Instructors Association internationally certifies him.

Mr. Campbell specializes in training police officers, and security forces. He holds the following instructor ratings: Karate-Do, Tae Kwon Do, Tang Soo Do, Close Quarters Combat, Handgun Disarming, Handgun Retention, NRA Law Enforcement Firearms Instructor, NRA Firearms Instructor, (Pistol, Shotgun, Rifle), NRA Home Defense, NRA Personal Protection, Advanced Handgun Instructor, Baton, PR24, ASP Baton, South Carolina Certified Concealed Weapons Permit Instructor, FAA Certified Flight Instructor Single and Multi-engine Airplanes, South Carolina Certified Emergency Medical Technician Instructor. Mr. Campbell also holds a South Carolina State Constable Commission and serves as a reserve police officer.

He is a member of the Special Forces Association, Association of Special Operations Professionals, Tactical Response Association, International Close Combat Instructors Association, Japan Karate Association, and South Carolina State Constable Association.