When approaching a vehicle, on which side should an officer approach to ensure the best reactionary gap?

Approaching a vehicle from the passenger side is often considered the best choice for ensuring an optimal reactionary gap. This approach provides several advantages in terms of safety and tactical positioning. By approaching from this side, the officer places themselves at a distance from the driver's side where a potential threat can originate, allowing for a better view of the occupants and their hands, which are crucial cues in assessing risk.

Moreover, the passenger side allows the officer to maintain situational awareness of the surrounding environment, reducing the chances of being obstructed by the vehicle itself. In the event of a confrontation, the officer has the opportunity to back away while keeping an eye on the occupants from a safer angle. Therefore, the tactical decision to approach from the passenger side is rooted in both safety protocols and effective threat assessment.