The competition has been produced as part of the ‘Morning After’ drink drive campaign and challenges entrants to use an app to work out roughly how long it takes for alcohol to pass through the body. Prizes include an iPad Mini 2.

The competition marks the first anniversary since the launch of the ‘Morning After Calculator’, where the user enters the drinks they have consumed and the app calculates roughly when the alcohol will have passed through their body.

Recent research published by road safety charity Brake found that one in 20 drivers (5%) drive the morning after a big night out on a weekly basis.

The survey carried out in partnership with Direct Line found that one in five motorists have confessed to previously getting behind the wheel the morning after a big night out while almost one in ten (9%) drive the next morning after heavy drinking at least once a month.

Sally Bartrum, Morning After campaign coordinator, said: “While there is more awareness now than there was a decade ago when we launched this campaign, a significant number of drivers still have no real understanding of just how long it takes for alcohol to pass through the body.

“Every morning, there will be people driving for routine purposes such as getting to work or doing the school run, who will be over the drink drive limit – and as such risking a drink drive conviction or, much worse, causing a collision and casualties because they are impaired.

“Through the Morning After campaign, and this competition, we are trying to highlight this risk to normally responsible drivers who may be unwittingly breaking the law.”