Roadside drug tests for cannabis return false results, research finds


September 12, 2019 05:22:28

Police direct drivers into a drug testing van.

The study found tests used by Australian police sometimes delivered incorrect results. (ABC News: Sarah Collard)

A study of roadside drug testing devices widely used by police in Australia has called into question their reliability for detecting cannabis.

“What we found was that these test results often came back positive when they should have been negative, or conversely that they came back negative when they should have

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