[Ireland] 1 In 3 Drivers Under 'The Limit' For Alcohol Still Test Positive For Drugs / Medical News Today, 26 Dec 2006

http://www.medicalnewstoday.com/medicalnews.php?newsid=59001
"One in three drivers suspected of driving while ‘over the limit,’ but subsequently found to be below maximum permissible levels of alcohol, nevertheless tested positive for a range of drugs, reveals research in Injury Prevention."

Drinking, drugs and driving in Ireland: more evidence for action
Inj. Prev., Dec 2006; 12: 404 - 408
P Fitzpatrick, L Daly, C P Leavy, and D A Cusack
Abstract - http://ip.bmj.com/cgi/content/abstract/12/6/404
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