Which type of crew is established for the sole purpose of rescuing fire fighters who are operating at emergency incidents?

The correct answer focuses on the "Rapid Intervention Crew" (also known as a Rapid Intervention Team, or RIT), which is specifically designated for the rescue of firefighters who may become trapped or incapacitated during emergency operations. The establishment of this team is a vital safety protocol in firefighting operations, ensuring that resources are readily available to respond to emergencies involving firefighters on the scene.

The Rapid Intervention Crew operates under well-defined guidelines and procedures to quickly assess the situation, locate downed or trapped firefighters, and execute a rescue with minimal delay. This team is trained specifically for these scenarios, equipping them with the necessary skills and tools to efficiently and safely perform firefighter rescues.

In contrast, terms such as "Rapid involvement crew," "Rapid investigation crew," and "Rapid insertion crew" do not pertain to the specific rescue of firefighters. These other designations may relate to different operational roles or contexts not focused explicitly on the safety and rescue of personnel in peril during firefighting activities.