"Technology moves on in leaps and bounds"
R44bloke - quite true. Sadly the CAA, EASA, and ECUK's design department move on in small, stumbling steps documented to the Nth degree and desperately trying to keep up with what the customer wants. You also need to be aware that, if it isn't made in batches of thousands then it is ludicrously expensive. Police Air Support in the UK is where it is today because we have had the last 20 odd years to find out what does and doesn't work, what is and isn't safe and what's just to damn big or heavy to carry. Which brings us back to the experience thing again.
Paarmo - had a chance to check the figures and I was wrong - should have read 8 landings and 14 arrests - 8th April 08 to 8th April 09.