The impression I've got over the years is that the majority of trained investigators have come from an investigative background where they've received training either could be through the forces, through the police, customs, HMRC, that way.
The training for a private investigator outside those routes has tended to be, for example, provided by a distance learning course, from the Academy of Private Investigation, a BTech level 3. Those have come about pretty much since the suggestion that licensing will come into being. Prior to that, there was pretty much nothing except a couple of distance learning packages provided by -- I think there was one company called Meridian and another one called Streetwise. We looked at them and while we can't comment on the quality of the training packages, what we were conscious of was that they were put together by accountants and businessmen, not investigators.