The Police spend time trying to stop speeding vehicles, but what about very slow ones ignoring the recommendation of the Highway Code to stop and let following traffic pass? Apart from the lack of consideration the drivers - and frequently their employers show for other road users - why does anyone send a JCB on a 40-mile jaunt in the rush hour? They often end up causing overtaking in unsuitable locations or situations. While driving excessively slowly isn't an offence as such it can create accidents. In the same way, while drivers cannot always be prosecuted for it, in the case of commercial plant I am sure the Traffic Commissioners could act against the operators, and I suspect that the other worse offenders - horse boxes may not be driven by properly licensed drivers in many cases.