Homonculus, I don't feel like hijacking this thread for HEMS and I can't PM you (I think it has something to do with the age of my account). Could you PM me? Maybe that open that function up for me.
However, I would suggest that the effectiveness of both police helicopter and HEMS services differ greatly based on the location and needs of the population they are serving.
PS - Could you please send me the link of the paramedic program that you claim is able to perform an angioplasty in the field? I know some guys in HEMS that would be very interested in that.