flungdung,
I think that (our) CAA attitude to GPS approaches is as close to "over my dead body" as makes no difference - the only pronouncements from them are to say that GPS will never be used as an approach navaid in the UK. I think they suffer from a peculiarly selective form of tunnel vision, so that they are unable to see good practice in other countries, UNLESS it would involve less aviation in the UK.
I believe that we use AS355(a few left) EC135(lots) MD902(lots) A109E(1) BK117(1), and probably occasional BO105 in the UK.
It is the Devon & Cornwall BK117 that is operated IFR/instrument rated. It would be very difficult to get any of the others to have IFR fuel reserves in police role, as yoou suggest.
P.S. Please can I move somewhere sensible where the regulator's goal is not to stop aviation??
