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Mass. SJC Rules Field Sobriety Tests Aren't Conclusive Evidence Of Marijuana Intoxication04:05

This article is more than 3 years old.

Massachusetts' highest court ruled Tuesday that field sobriety tests — typically used in drunk driving cases — are not conclusive evidence of marijuana intoxication.

But the ruling is a bit murky. It says there's no scientific consensus around field sobriety tests, but it also says police officers can testify about their observations of a driver's possible impairment — they just can't testify about any conclusion from those observations.

Walpole Police Chief John Carmichael, who sits on the state's Cannabis Advisory Board and co-chairs the Massachusetts Chiefs of Police Association's substance abuse committee, joined WBUR's All Things Considered to talk about the ruling.

This segment aired on September 19, 2017.


Deborah Becker Twitter Host/Reporter
Deborah Becker is a senior correspondent and host at WBUR. Her reporting focuses on mental health, criminal justice and education.


Lynn Jolicoeur Twitter Producer/Reporter
Lynn Jolicoeur is the field producer for WBUR's All Things Considered. She also reports for the station's various local news broadcasts.


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