Active shooter survival, school shooting training, active killing training, Community Emergency Response Team Training, how to survive an active shooter, CERT, tools for active shooter survival, security consulting, private investigations, private investigator san diego, san diego private investigator, firearms training, san diego firearms training, firearms classes, firearms instruction, san diego training, safety training, san diego safety training.

Sentry, Inc. is an experienced group of veteran police officers, disaster managers, and medical professionals dedicated to providing superior solutions in security, investigations and safety.