Currently Babcock Defence Services 'run' DEFTS in its entirety, supplying air and groundcrew as well as aeroplanes. Serving Mil QFIs are in the minority nowadays, although a lot of the civilian FIs are ex-QFIs or QHIs, and the majority of the rest have some previous military experience of some sort, although this is not a prerequisite..
Any civilian FI employed to work at DEFTS is required to work-up to B2-equivalent standard followed by the usual ride with the CFS trappers before being let loose with students. Said civilian FIs are then supervised by DEFTS military standards as normal; they are to all intents and purposes 'QFIs'. The majority of DEFTS civ FIs eventually reach A2. The powers-that-be are very keen that military ethos is instilled and maintained through civ FIs as well as serving mil staff.