Yes. They have tolerances built in as approved screening devices.
On October 20th, 2016. See this statement in context.
On October 20th, 2016. See this statement in context.
October 20th, 2016 / 11:45 a.m.
Chair, Alcohol Test Committee, Canadian Society of Forensic Science
Yes. They have tolerances built in as approved screening devices.
See context to find out what was said next.