Jeez - stop making assumptions - just answer the damn question!

The barcode on the document is water marked. thats all!

Why? What are you hiding? Not forged or invalid is it? You d better not crash your UNINSURED car into someone mate!!

l am sure that u r NOT planning to fake one up on the PC, r you? Police cars on the road can drive along, with thier cameras working, reading number plates. If they log a car which is not insured, the system beeps to tell the driver & his mate to pull over the red Fiat or the blue Corsa, & throw the book at the driver, which usually includes seizing & crushing the uninsured car, & a definate ban for the driver, with a massive hike in insurance for them when they get their licence back!

they usually just look at it.

the post office checks its in date and the drivers name.its not scanned

People are only being cynical because of the way you have worded your question, please do not take it so personally.
If you take an insurance document in to the post office to support your car tax application they will just look over it to make sure it is valid (in date) and covers the vehicle that is being taxed.

Just look at it.

they just look at them that is all.

Yup did mine today, they just look.

l wish my suggestion could be useful.And here http://AutoInsuranceIdeas.info is information which l used a lot.Check it out.

They look at dates, registration number

Hi, No all your documents will be just looked at to make sure they match your name and that the policy is in date etc.. The only document that will be scanned will be the document DVLA has sent you to get your tax.

Try getting an online insurance quote It is free and quick to do. http://autoadviceonline.com/Auto-Insurance-Quote.html nnGood Luck!