Yes it is possible. Perhaps you should write directly to; The London Ambulance service NHS Trust 220 Waterloo Road London SE1 There may be a restriction on how long you ride out and you will need to sign a waiver "giving your life and soul away" be aware how expensive it will be to live in central london for weeks at a time. If you have a relative or friend living in the area. State which area in your letter and it is more likely to be re-directed to the AOM in that appropriate area for action. Regards Bob