Whilst waiting for my wife in Morrison's yesterday I took it upon myself to briefly leaf through "caravan" mag. In the Q&A section I found a question from a bemused person who had been stopped by the police for a spot check and told his outfit was "illegal" as it was an 89% match. He didn't say what the eventual outcome was but it's no wonder new caravanners get baffled when the local babylon don't know the laws on the roads they're policing.