Not as far as I am aware. If someone gives you their name, address and phone number, then that's enough. I don't see any power for you to require them to leave their vehicle.
The only problem there is if youre giving false details, however youd be daft to do thast as youd be traced from your reg number ( assuming its not a false plate ) and your tax disc serial number.
That could be a problem, but you still don't have any power to stop the vehicle moving.

The only problem there is if youre giving false details, however youd be daft to do thast as youd be traced from your reg number ( assuming its not a false plate ) and your tax disc serial number.
I've had numerous times when I have filled up with petrol and only been charged for the goods I bought (paper/chocolate bar) to then have to inform the cashier I also have fuel to pay for.
Never even crossed my mind to be dis-honest.
If you don't pay it's theft. Simple as that.
Succinctly put.
Succinct, but not 100% technically correct.
I'd be worried if any retailer lost a court case when there is CCTV evidence of someone putting fuel in, going into the shop and not paying. Sure sure, fight the system, blag etc... but it still amounts to dishonesty. If you go to a fuel station to refuel, but don't pay and try to get away with it because you weren't asked, it is frankly ridiculous.
Is it true that if you forget your wallet, you can get an IOU and pay it within a week?


I work part time at a fuel station, the training quite clearly states that a casher MUST ask customers if they have had any fuel because if we fail to do so they are allowed to leave without paying for it and it is then considered a gift. This came up in Motors a while back and I provided a transcript of the training.
Dishonesty isn't proved by merely not paying. I don't think it's unreasonable for someone to go in think that the petrol is being paid for and for one reason or another doesn't check the amount being paid for on the card. If it's a one off mistake, why criminalise it?