Scott Macdonald cannabis-impaired driving book available for free download

October 2021: The second edition of Cannabis Crashes can be downloaded for free here, or ordered online here.

Are Canada's new cannabis-impaired driving laws rooted in sound science? CISUR scientist and former assistant director Dr. Scott Macdonald has published the Cannabis Crashes: Myths and Truths, a new book looking at how the epidemiological evidence supports these new laws.

Drawing on his decades of research in the substance-use field, Macdonald describes in simple terms epidemiological issues important for understanding whether conclusions from studies around how cannabis impairs drivers are justifiable, compares them to research and laws around alcohol-impaired driving, and reveals numerous myths and truths about cannabis and driving.

Read his blog series on cannabis-impaired driving.