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Road Safety Bill [Lords]

I agree that driving under the influence of anything that impairs judgment—drugs are the obvious example—is just as dangerous as the specific example of alcohol. The difficulty, as I understand it, lies in developing road-side equipment that can detect the presence of drugs; however, people can of course be taken to a police station for a blood test. A number of people are working on this issue because, sadly, as my hon. Friend knows, people driving under the influence of drugs is as much of a problem as people driving under the influence of drink.