Sgt. Ivan Trevino (front left), technical rescue technician, Technical Rescue Platoon, Headquarters and Service Company, Chemical Biological Incident Response Force, hands a drill to Sgt. Joe L. Martinez (back left), a team leader, to break through a pile of concrete obstructing a path to a simulated casualty. Marines and Navy corpsmen with the Technical Rescue Platoon are able to demonstrate five disciplines, confined space, rope, trench, vehicle extrication, and collapsed structure rescue in personal protective equipment. - Sgt. Ivan Trevino (front left), technical rescue technician, Technical Rescue Platoon, Headquarters and Service Company, Chemical Biological Incident Response Force, hands a drill to Sgt. Joe L. Martinez (back left), a team leader, to break through a pile of concrete obstructing a path to a simulated casualty. Marines and Navy corpsmen with the Technical Rescue Platoon are able to demonstrate five disciplines, confined space, rope, trench, vehicle extrication, and collapsed structure rescue in personal protective equipment.