Hi MisterBonkers
As Flaxton and Mighty say, HEMS is commercial air transport too.
It is, in my view, a ridiculous state of affairs but those are the rules! How we came up with a system that insists that if you want to carry out HEMS single pilot, then you have to carry a 'qualified HEMS crewmember' who has completed a course and line check etc. to help you navigate. However, if you are in a non-SPIFR machine and it turns to night, you are supposed to offload your capable navigator and extra pair of hands and fly back in the dark holding the map and navigating yourself while the poor old paramedic (passenger) has to find his way home from some distant hospital! Well, that has to be safer doesn't it! Rant over.
TeeS
P.S. Good job it wan't a police helicopter, they would have thrown the book at him