Police couldn't believe their eyes – or more accurately the reading of an intoxicated driver.

Especially as it was 11.44am on Sunday morning in Lynn Road, Ely, when they pulled over a white van driver.

"We stopped him as we suspected drink driving,” said a police spokesperson at East Cambs Policing.

The legal limit is 35 micrograms per 100 millilitres of breath.

Two days later – posting the stop to their Facebook page – cops decided it was time for a competition.

“What roadside reading did this chap provide?,” was the question they posted to their Facebook followers.

“Answers below” they announced.

And so began a hectic 60 minutes of ‘wagering’.

The post quickly attracted 80 comments, with guesses ranging from 50 to 217!

Finally, possibly not because I posted to East Cambs Police to ‘please put us out of misery’ we all got the answer.

Police revealed the reading that ‘White Van Man’ produced.

Wisbech Standard: East Cambs Cops and the 'big reveal'East Cambs Cops and the 'big reveal' (Image: East Cambs Cops+)

“The answer was 120 – nearly four times the legal limit,” said police.

One resident posted: “Good grief, I'm amazed they could get the van in gear!

“A danger to other road users, without a doubt. I'm ignoring the danger to themselves, you can't fix stupidity!”