Two Years of Legal Cannabis from Specialized Retail Stores: Swiss Pilot Project Shows Positive Effects on Health Protection, Consumer Competence, and Combating the Illicit Market
For more than two years, the scientific pilot project “Grashaus Projects” has been underway in the Swiss canton of Basel-Landschaft. The study examines the regulated, legal sale of recreational cannabis to registered participants through licensed specialty stores, operating under clear legal requirements and providing individualized professional counseling. Implemented operationally by the Sanity Group under the scientific leadership of the Swiss Research Institute for Public Health and Addiction (ISGF), the project is now delivering robust, up-to-date data on how controlled access to recreational cannabis can function in practice. The central findings: legal specialty stores can help push back the illicit market, strengthen consumer competence, and promote harm-reducing behavior – factors that are highly relevant both for Switzerland’s ongoing legislative process on cannabis legalization and for Germany.