A new advertising campaign, which aims to raise awareness of drug driving, is due to launch in Northern Ireland.
The Department of the Environment's research showed that there has been a five-fold increase in people being driven by someone who had taken drugs.
Environment minister Sammy Wilson said: "Drug driving is a significant and persistent problem throughout Northern Ireland.
"It can ultimately kill you or another innocent road user," he added.
In 2008 there were 28 deaths and 121 people seriously injured as a result of drink or drug related driving.
Mr Wilson said there was a perception that drug driving was difficult to detect and that many people think they can easily get away with it.
However, he added: "You can't get away with a life sentence or injuries or a death sentence for you, a friend or a family member."
The campaign will run from June throughout the festival season in the hope that "high-risk" young people will take notice and not drive under the influence of drugs.
Source - http://news.bbc.co.uk/2/hi/uk_news/northern_ireland/8073482.stm