DVSA said the 20-minute on-the-spot checks will targets campers this weekend
Lights, brakes and other parts will be assessed after recent roadside checks found that one in six caravans have a serious safety problem
It comes as caravan, motorhome and campervan sales are at record highs due to the pandemic restricting overseas holidays
Some 11m Britons will be driving over bank holiday with a heat wave predicted.
