Germany’s approach to cannabis legalization is facing major changes, and health concerns - especially regarding mental health risks - are at the heart of the debate. As we refine our cannabis policies in Canada, these developments are relevant not just for policymakers, but also for workers in safety-sensitive industries.
With increasing evidence linking heavy cannabis use to psychosis, what should workers know about these global trends?
Germany’s Cannabis Law: What’s Changing?
In April 2024, Germany took a big step by legalizing personal cannabis use: allowing adults to possess up to 25 grams and grow up to three plants. The goal? To weaken the black market while providing safer, regulated access.
However, after federal elections in early 2025, the new conservative government is looking to roll back legalization, citing public health concerns and increased drug-related crimes.
One of the biggest critics of legalization has been The German Medical Association, which has called for the government to reverse the policy. Their main concern? The link between cannabis use and mental health risks, particularly psychosis. This echoes growing concerns worldwide - including here in Canada - about the potential dangers of regular cannabis use.
The Canadian Connection: Cannabis and Psychosis Risks
Germany isn’t alone in re-examining cannabis risks. A Canadian study by CAMH (Centre for Addiction and Mental Health) found that teens using cannabis are 11 times more likely to develop a psychotic disorder than non-users. Another study from McGill University found that cannabis use disrupts brain activity in young adults prone to psychosis, raising red flags for medical professionals.
These findings reinforce what many experts have warned about for years: cannabis isn’t risk-free, especially for those in safety-sensitive jobs like construction.
Why This Matters on the Job Site
Impairment Risks
Long-lasting Effects
Drug Testing Complications
Mental Health Concerns
