 Sometimes the air ambulance may be run as a dual concern with another governmental body - for example, the Wiltshire Air Ambulance was run as a joint Ambulance Service and police unit until 2014.In other cases, the paramedic staffs the aircraft full-time, but has a dual function.In the case of the Maryland State Police, for example, the flight paramedic is a serving State Trooper whose job is to act as the Observer Officer on a police helicopter when not required for medical emergencies.