A leading motoring organisation is warning drivers to be extra careful on the roads this festive season, with more snow forecast across the country.
The Institute of Advanced Motorists (IAM) said drivers should be aware of the dangers of driving too soon the morning after drinking alcohol.
As boozy New Year celebrations approach, it said many drivers may find themselves over the limit without even realising it.
The charity said many people are not aware of the risk of driving the morning after despite being well-informed about drink-driving risks.
It pointed out that it can take as long as 12 hours for four pints or three large glasses of wine to leave a person's system, which means if a person hasn't stopped drinking until 1am, they will not be safe to drive until after lunchtime the next day.
IAM also said it was likely that problems caused by severe weather conditions will be compounded by the huge volume of motorists travelling to towns and shopping centres for the sales.
IAM chief examiner Peter Rodger said: "The current weather combined with alcohol and driving is a potent recipe for a cocktail of problems.
"The additional challenges of driving on snow and ice make the normal messages about not drinking and driving all the more important this New Year.
"The morning after effect has the potential to catch out many shoppers as well as those returning home after an extended break."
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