Just two thirds of a pint is all it takes to be over Scotland’s new drink-drive limit.
And when the Tele took to a Dundee pub to breathalyse drinkers as part of an experiment, many were surprised at just how easy it is to fail the test.
On Tuesday, MSPs voted to bring in a order that will see drink-driving limits reduced from 80mg to 50mg per 100ml of blood.
We went to Doc Ferry’s bar in Broughty Ferry to see how people would fare under the new rules.
None of the people we tested had been driving, or were planning on driving for the remainder of the day.
Rod Munro, 55, said he had “quite a few” drinks the night before, and one pint of lager when we tested him at lunchtime.
His results showed he had a level of 75mg of alcohol in his system.
“I’m a bit surprised at the level, especially at this time of day,” he said.
“If I’m having a drink, I make sure that I won’t have to drive anywhere the next day, but it’s interesting to see the results.”
Had Rod been behind the wheel from December 5 onwards, he would have failed the test. However, he was just under the current limit.
David Glass, 42, owner of Doc Ferry’s and president of Dundee Licensed Trade Association, said: “In this day and age, most people don’t go to the pub with a view to driving home.
“The biggest hit will be the next day, especially approaching Christmas. People go out a lot more at this time of year.
“It’s when they get up the next day that will be the issue.”
David drank two thirds of a pint of lager the volume of alcohol he thought would roughly be the new limit and agreed to be breathalysed.
Using an off-the-shelf electronic breathalyser, the results showed that he was under the new limit, but an alarm sounded, telling him he was approaching it.
“Obviously, this was just an experiment, but it’s interesting to see the results,” he said.
Megan Howell, 21, a barmaid at Doc Ferry’s, was another person tested.
She said: “I finished work at 3pm yesterday, but stayed in the pub for a few drinks after my shift.
“I had seven vodkas, followed by a bottle of wine at home. I stopped drinking at 11pm and went to bed.”
Megan started work at 9am the following day a good example of someone who could fall foul of the drink-drive limits.
Surprisingly, her results were low less than 20mg.
She said: “I was surprised it was low, to be honest, because I’m feeling a bit groggy today. I’d like to have seen my results first thing this morning, because I think they would’ve been a bit higher.”
Bill Gibson, 61, a retired plumber from Monifieth, was breathalysed not long after his second gin and tonic.
Due to a medical condition which affects his breathing, his result could not be recorded on the electronic machine.
We then used a single-use breathalyser that doesn’t require such a long breath and he recorded a level of 50mg, right on the limit. He said: “The answer is, if you’re drinking, don’t drive.
“There is a huge grey area when it comes to the next morning, because I think a lot of people don’t consider the fact alcohol could still be in your system.
“I’m sure alcohol levels are based on metabolism, too. I’m quite a big lad, so that could have made a difference to my score.”
The new drink-drive limit is set to come into force in Scotland on December 5.