You're asking me if there's a certain concentration at which a drug will cause impairment. Is that correct?
On June 12th, 2007. See this statement in context.
On June 12th, 2007. See this statement in context.
Chair, Drugs and Driving Committee, Canadian Society of Forensic Science
You're asking me if there's a certain concentration at which a drug will cause impairment. Is that correct?
See context to find out what was said next.