cannabis

Cannabis Users Can Accurately Predict Impairment and Readiness to Drive

There has been yet another interesting study published related to cannabis impaired driving. Published in the Journal of Accident Analysis and Prevention, the study titled Predicting changes in driving performance in individuals who use cannabis following acute use based on self-reported readiness to drive, looks at how well people can tell their state of impairment after using cannabis.

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Cannabis Users Can Accurately Predict Impairment and Readiness to DriveRead More »

Cannabis Users Can Accurately Predict Impairment and Readiness to Drive Read More »

Factors that may influence the relationship between cannabis use and car crashes

Cannabis use and car crashes are two important issues that have been studied extensively. But there are also a lot of factors that could be taken into consideration when it comes to the relationship between cannabis use and car crashes.

Some factors studies decided to look at were age, biological sex and recent alcohol consumption.

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Factors that may influence the relationship between cannabis use and car crashesRead More »

Factors that may influence the relationship between cannabis use and car crashes Read More »

Roadside cannabis impairment tests unreliable according to study

cannabis impairment tests might be unreliable

There is new evidence that the current cannabis impairment tests in Canada are unreliable. This is according to an article by the Department of Justice’s National Institute of Justice (NIJ) in the United States.

Police in this country have two ways to test for cannabis-impaired drivers: testing bodily fluids for THC and standardised field sobriety tests (SFST). The NIJ’s study determined that both SFSTs and THC levels in biofluids are unreliable indicia of impairment.

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Roadside cannabis impairment tests unreliable according to studyRead More »

Roadside cannabis impairment tests unreliable according to study Read More »

Are Standardized Field Sobriety Tests effective in predicting cannabis impairment?

standardized field sobriety tests like the walk and turn are not always effective

Police officers use standardized field sobriety tests (SFST) at the roadside when deciding whether or not a suspected impaired driver should be taken back to the station for further breath or blood tests. While approved roadside screening devices are widely used across Canada to detect alcohol impairment, drug screening devices are not as common. While the government approved the Draeger DrugTest 5000 for police use, the portable devices, which test saliva for the presence of THC, are not always reliable. As a result, some police forces opted not to use them and many still rely on the good old-fashioned SFST in drug-impaired driving investigations.

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Are Standardized Field Sobriety Tests effective in predicting cannabis impairment?Read More »

Are Standardized Field Sobriety Tests effective in predicting cannabis impairment? Read More »

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