If it is about fixing the certificate to the trailer there will be a danger that that can be easily removed, particularly on small trailers. On timber trailers there will be a particular problem, so if the Government were to go down the route of
smaller trailers, which obviously I hope they do not, they may have to find some way of burnishing it into the wood or people will simply steal certificates and put them on their own trailers. If it is an aluminium trailer, again, it could be unscrewed unless it was riveted on in some way. All I am arguing is that if we go down this route, let us have a system that works and does not allow people simply to—if I may use the term—nick a certificate from one trailer and put it on to their own trailer for a few days while they are using it and then return it to the original trailer.