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Law Enforcement Response to the Active Shooter Train-the-Trainer

This course is designed for law enforcement officers or armed security who may, during the course of their duty, respond to an active shooter/active assailant attack. This course focuses on the fundamentals of locating, engaging, and neutralizing a single perpetrator or multiple perpetrators. This course is designed as both a provider course and a train-the-trainer course. 


At Threat Suppression, we have spent more than 25,000 hours researching active shooter events. Our staff have commanded two active shooter events. We have trained more than 100,000 public safety professionals on active shooter response and found that many agencies do not understand active assailant research. Many agencies train utilizing concepts that are often not needed in active shooter response. 

Research continues to demonstrate that 70% of all active shooter events are stopped by a single law enforcement officer. However, the majority of active shooter training focuses on team movement and not individual assault tactics. This course focuses on the urgency to get to the threat, and best practices method for a solo officer to engage a perpetrator. This course will also cover team movement will a demonstration of different formations, including the diamond, line, Y, and T. Officers will understand how to work together to quickly form into a team to counter a threat. Officers will also discuss formation movement when large groups of people are fleeing.


At least one third of active shooter perpetrators will employ an asymmetric attack tactic. These tactics include explosives, chemical munitions, fire-as-a-weapon, mobile attacks, denial-of-entry tactics, and much more. This course will discuss some of the more common asymmetric tactics and counter-assault response.

To attend this course, students must be proficient with their service weapon. At a minimum, every student should hold current qualifications on their duty pistol. Students who are also qualified to use a patrol rifle will have the opportunity to use this platform during the training. This course assumes that the students have had little to no training on building entry, movement to threat, or room clearing.


The following concepts are discussed in this course with different tactics, techniques, and procedures taught for each one:


  • Open air movement to the crisis site

  • Basic room clearing techniques, including threshold evaluation, slow clears, "running the rabbit", distraction techniques, and more

  • Movement to contact in hallways, t-intersections, stairwells, and more

  • Defeating denial of entry tactics (tactical breaching)

  • Operating with the Rescue Task Force concept

  • Casualty collection point considerations

  • Basic explosive device recognition and mitigation

  • Team formations and team movement

  • Bounding/overwatch and open-air movements

  • Basic vehicle assaults

  • Countering an officer ambush in a patrol vehicle

  • Basic Tactical Emergency Casualty Care procedures for self-aid, buddy aid, and victim aid

This class is strenuous and requires significant physical exertion. Participants need to be in good physical shape. Participants can expect to wear their full duty uniform, including body armor for the majority of this course. Participants will need a full duty belt with three pistol magazines and holders. Each participant will need a working weapon-mounted flashlight designed for single hand use. Participants will need 400 rounds of pistol ammunition for each student. This course requires a firing range with a minimum of 25 yards. Students will fire from 10 firing positions.

To download a PDF description of this training, please click the PDF below. If you would like more information on booking this course, please email, or call 1-800-231-9106. The provider course is two days in length. The train-the-trainer course is three days in length. 


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