Was browsing one of the mags in Birmingham Airport while waiting for a flight and there was a bit about the rules for permit helicopters and passengers.
Previously if you had an ex-mil Gazelle or Scout you were restricted to pilot and "ground crew essential for the handling of the aircraft at the destination" or some phrase like that - very limiting.
Now it seems the rules have changed and you can take passengers. Up to a total of four, I think.
Time to get me a Gazelle