In 1997, renown police psychologist Dr. Alexis Artwohl and police officer Loren W. Christensen (co-author of On Combat) wrote Deadly Force Encounters: What Cops Need to Know to Mentally and Physically Prepare for and Survive a Gunfight. It quickly became an authoritative book for police officers, citizens legally carrying a concealed firearm, and police academies.
The greatly expanded scientific research, stories, and analysis in...