If you don't have it on you, You don't have it to use

This applies to providing medical care during patrol operations, however more time critical, in an Active Shooter / Mass Casualty Incident, the moment an officer exits the patrol vehicle, the operational environment changes completely. Movement becomes rapid, chaotic, and unpredictable. Returning to the vehicle for equipment may no longer be possible due to ongoing gunfire, movement deeper into the structure, evolving assignments, or the immediate need to render aid.

That is why the principle matters:

“If you don’t have it on you, you don’t have it to use.”

This is not simply about carrying more gear. It is about carrying the right equipment immediately accessible during the first critical minutes of the incident. During the “Stop the Killing” phase, officers are rapidly moving toward the threat. But once the suspect is neutralized or isolated, the mission quickly transitions into “Stop the Dying.” Officers often become the first providers for injured victims long before Fire/EMS can safely enter the crisis site.

The reality is that many preventable deaths occur from survivable injuries:

• Extremity hemorrhage 
• Airway obstruction 
• Penetrating trauma 
• Delayed evacuation 

* A tourniquet locked in the trunk does not stop bleeding.

* A radio left in the car cannot communicate a secure corridor.

* A flashlight sitting on the seat cannot help clear a dark hallway.

* Extra ammunition stored in a patrol bag is useless if separated from the officer during movement.

The first several minutes of an AS/MCI response are defined by:

• Speed 
• Chaos 
• Fragmented communication 
• Limited information 
• Immediate life-or-death decisions 
• 
  

Officers may move hundreds of yards from their vehicles, become pinned inside structures, transition to rescue operations, or be redirected to secondary crisis sites. Equipment carried on the body becomes the officer’s only guaranteed resource. This principle also reinforces a broader operational mindset:

Preparation must occur before deployment — not during the crisis.

An officer should step out of the vehicle already prepared for:

• Threat engagement 
• Casualty care 
• Communication failure 
• Low-light operations 
• Extended interior operations 
• Victim evacuation 

Essential immediately accessible equipment may include:

• Rifle or primary weapon      system 
• Spare magazines/ammunition 
• Tourniquet 
• Medical gloves 
• Flashlight 
• Radio 
• Small trauma kit 
• Breaching or rescue tools  (mission dependent) 

The goal is not to overload officers with unnecessary equipment. The goal is ensuring that the critical tools needed during the first 10 minutes are physically on the officer when they are needed most.

Because in an Active Shooter / Mass Casualty Incident:

Seconds matter, Movement is constant, and going back to the car may never happen.