I usually agree with Buenchico in matters of law and he is nearly always correct. However, on this occasion, chris, I think you are wrong.
There are three terms used in connection with motoring law: �driving�, �using� and �keeping�. The definition of �driving� is obvious enough (though still sometimes open to interpretation). �Keeping� means having ownership or legal custody of a vehicle. �Using� is a much wider term and for a vehicle to be �used� it does not necessarily have to be driven. For a vehicle to be �used� it merely needs to be �in use� (as opposed to being laid up or out of use). Section 143 of the RTA (which provides for compulsory third-party insurance) clearly refers to �using� a motor vehicle. I would therefore suggest that if a vehicle is parked in a public place it is �in use� and must be insured.
There is currently a consultation document in circulation which proposes legislation to make it an offence to be the registered keeper of a vehicle the use of which is not insured in accordance with section 143 of the Road Traffic Act 1988. Such an offence would not require the police to prove that the vehicle was in use on the road. Subject to certain exemptions, the possession of a vehicle without valid insurance would be an offence. Liability would rest with the keeper of the vehicle. This would effectively make it compulsory to insure a vehicle that is being �kept� rather than �used�.
Finally, whilst I respect your experience as a police officer, Scotman84, your question concerning the theft of a vehicle is not relevant. As I�m sure you know it is not compulsory to insure a vehicle against theft, but only against Third Party liabilities.