Posts for the month 9, 2025

DUI and Marijuana: What Is the Law and How Are THC Levels Measured in California?

California has long been at the forefront of cannabis legalization, but with legalization comes stricter enforcement of laws against impaired driving. Many people are surprised to learn that you can be arrested for driving under the influence of marijuana (DUI of cannabis) even if you are a legal, recreational user. Unlike alcohol, where the law sets a clear limit for impairment, marijuana DUI enforcement involves complicated testing, subjective observations, and scientific debate about what constitutes impairment.In this article, we explain what the law says, how marijuana DUIs are investigat[...]