The role of the Emergency Tactical Services (ETS) is to provide tactical support and respond to critical incidents. ETS is responsible for providing specialized response to situations that require a high level of tactical capability, such as high-risk arrests, hostage situations, barricaded suspects, and active shooter scenarios.

ETS is comprised of officers from the Saint John Police and Kennebecasis Regional Police Force specially trained in tactical operations and equipped with specialized weapons, communication systems, and protective gear.

ETS is also responsible for providing assistance to other units during high-risk warrant services. ETS is a critical component of the Saint John Police, providing a valuable service that helps to ensure public safety and security.