If you are concerned about Government insurance policy you may wish to read the DfT's take on insurance discs? The full text can be read here.
http://www.dft.gov.uk/stellent/groups/d ... 93-06.hcsp
Extract
4.16 Public concern about the levels and consequences of uninsured driving has led to considerable debate recently on alternative mechanisms for improving compliance. One possible development that appears to have enjoyed some public support was the focus of a recent Private Members Bill17 to require insurance companies to issue, and vehicles to display, a windscreen insurance disc.
4.17 Insurance discs have some superficial attractions: they are visible and in some sense provide instant proof of insurance. They are also used in a number of other countries in the EU. There are, however, a number of practical problems with their use. First, like tax discs they can be forged and, in the absence of a single design, more easily forged. Second, since it is the individual rather than the vehicle who is insured, it is not clear what kind of information could legally be displayed on a disc. Third, unless responsibility for enforcement was changed to incorporate Traffic Wardens and Local Authority Traffic Marshals, they would be unlikely to make any difference to enforcement. Finally, we have had tax discs for a very long time and on DVLA's own estimates almost 6% of registered vehicles on our roads do not have valid tax. It is difficult to imagine therefore that insurance discs will have a significant and long-term impact on the incidence of uninsured driving. As one Chief Constable put it during consultation, "it is yesterday's solution to today's problem".
Regards
JD