There is a great deal of research generated by HEMS medical teams. The ethos of HEMS prehospital research goes right back to Alistair Wilson and John Nicoll who had to fight to get the London service started and then continued. One of the enduring issues with this type of prehospital work is its difficulty. Look at the amount of effort put into the Paramedic 2 study and its results are still questioned. Far more needs to be done.
There are perfectly good audit programmes and protocols that are frequently and well trained in all UK HEMS systems.