Fred Mastison is a professional instructor in the fields of defensive tactics, firearms, and executive protection. He is a reserve police officer and has been training in close quarter combatives for over three decades. He is recognized internationally as one of the top combatives and firearms instructors in the world. He also operates an executive protection division and provides services around the world.

He is a regular instructor at Write-Patterson AFB on OSEC and Personal Security for US embassy personel being deployed world-wide.