Germany’s Cannabis Legalization: Two-Year Report Shows Mixed Results

Düsseldorf – Two years after the controversial partial legalization of cannabis in Germany, a new scientific report reveals a complex picture of progress and challenges. While early indicators suggest a shift away from the black market, concerns remain regarding public health, youth protection, and the effectiveness of law enforcement. The report, compiled by researchers from the Universities of Düsseldorf, Hamburg, and Tübingen, paints a nuanced view of the evolving landscape following the implementation of the Consumption Cannabis Act (KCanG).

The initial data indicates a gradual increase in cannabis consumption sourced from legal channels. Experts note signs that the illicit market is “slowly being displaced by legal offerings,” though a definitive assessment remains premature. According to addiction researcher Jakob Manthey of the University Hospital Hamburg-Eppendorf (UKE), data currently available doesn’t demonstrate a weakening of organized crime in this sector. Manthey is one of the authors of the report, which aims to evaluate the impact of the KCanG.

Growing Legal Market, But Concerns Persist

One significant finding is the rapid expansion of the legal medical cannabis market. Germany has established “the largest principle legally-commercial market” for medical cannabis in Europe, with 200 tons imported commercially in 2025. This represents a 198 percent increase compared to 2024, and the import is largely organized through private companies, primarily from Canada. Though, the report raises concerns about transparency and the potential for illegal groups to develop into involved in the production and distribution of medical cannabis, potentially using Germany as a distribution hub.

The report also highlights issues with the prescription of medical cannabis. Researchers found that therapeutic leverage often involves cannabis with excessively high THC content, posing an increased health risk to patients. The average THC content in prescribed preparations is 25 percent, prompting calls for a limit of under 10 percent for freely available products, with higher concentrations reserved for patients under stricter medical supervision.

Youth Protection Measures Under Scrutiny

Perhaps one of the most pressing concerns raised in the report centers on youth protection. While cannabis remains illegal for minors, early intervention and counseling services for young people who consume cannabis have decreased. Here’s attributed, in part, to changes in law enforcement practices, where cannabis-related offenses by young people are less likely to result in mandatory referrals to intervention programs. The report notes that the lines of responsibility have become less clear, hindering collaboration between police, youth services, and addiction prevention programs.

Despite these concerns, the report acknowledges that awareness of the risks associated with cannabis use remains high among young people, and the proportion of adolescents consuming cannabis has been steadily declining since 2019.

Impact on Illegal Trade and Law Enforcement

The evaluation suggests that the legalization measures have contributed to a decrease in cannabis purchases from the black market. A survey of over 2,000 law enforcement personnel revealed that it has become more difficult to prosecute actors involved in the illegal cannabis trade. Police are reportedly finding it harder to combat cannabis-related crime, according to criminologist Jörg Kinzig from the University of Tübingen.

Currently, the estimated total annual cannabis demand in Germany ranges from 670 to 823 tons. Since April 2024, more consumers have been cultivating cannabis themselves. Non-commercial cultivation associations, permitted with a license, are playing a limited role in displacing the black market, and the report suggests strengthening these associations by streamlining the licensing process and reducing restrictive conditions.

What’s Next for Cannabis Regulation in Germany?

The report emphasizes that, at this stage, there is no discernible increase in overall cannabis consumption that can be directly attributed to the reforms. A comprehensive final report is scheduled for April 2028, providing a more conclusive assessment of the long-term effects of the partial legalization.

The evolving situation in Germany provides a valuable case study for other nations considering similar reforms. The initial findings underscore the importance of careful monitoring, data-driven adjustments, and a continued focus on public health and safety as cannabis regulations evolve. The balance between reducing the power of the black market and mitigating potential harms remains a key challenge for policymakers.

As Germany navigates this new regulatory landscape, ongoing evaluation and adaptation will be crucial to ensure that the benefits of legalization are realized while minimizing the risks. The next major checkpoint will be the release of the final report in April 2028, which will provide a more comprehensive understanding of the long-term impacts of the KCanG.

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