Cannabis in Switzerland is illegal, though minor possession was decriminalized to a fine in 2012. Several cantons began to allow adults to cultivate and use cannabis in 2012, but this was struck down by federal courts. In 2016, four cities stated they were looking into establishing pilot cannabis clubs. The number of cannabis users in Switzerland is estimated to be around 500,000 among a population of 8 million.
Cannabis that contains more than 1.0% THC is classified as an illegal drug in Switzerland. Thus, according to the Federal Law on Drugs: the production, culture, use, and possession of cannabis, are all prohibited and considered as criminal infringements. These infringements are punishable by up to three years of imprisonment and/or a fine.
Since 2017, legal cannabis, also known as "low-THC weed", with less than 1.0% of THC is sold at nearly every tobacco store. In March 2019, a Swiss Federal Administrative Court upheld the taxation scheme by customs officials, which impose a tax of CHF38 ($37.70) per kilo as well as 25% of the retail revenue.
Currently only one narcotic cannabis drug preparation is officially approved for medical use in Switzerland. However, with the adoption of a revision in federal narcotics regulations accepted by popular vote in 2008, and in effect since 2011, Swiss physicians can obtain a special permit from the Federal Office of Public Health for their patients with the allowance to prescribe medical cannabis for 12 months. Only two pharmacies in the country are permitted to dispense cannabis tinctures and cannabis oil concentrates for patients with serious or terminal illnesses. Treatment options with cannabis flower or cannabis resin are not available.
An official cannabidiol preparation (Epidiolex®) for rare forms of epilepsy was approved by the FDA in June 2018, and by the European Medicines Agency in September 2019. Since then, Swiss pharmacies are allowed to prepare and dispense medicinal products containing cannabidiol as a magistral formulation and prescription drug (not subject to the Narcotics Act), in accordance with current German Drug Codex DAC/NRF and Swiss pharmacopeial standards.
An attempt to decriminalize possession and consumption of cannabis failed narrowly in Parliament in 2004. As a reaction, a popular initiative ("Eidgenössische Volksinitiative für eine vernünftige Hanf-Politik mit wirksamem Jugendschutz") to amend the constitution to legalize cannabis was introduced 2004.
Since 28 September 2012, the possession of less than 10 grams of cannabis is no longer a criminal infringement, but is still punished by a 100 Swiss francs flat fine. Professional cannabis trade, as well as the possession of a quantity of cannabis that can affect the health of a large number of people (4 kg of hashish, according to the Federal Court), are punished by one to three years of imprisonment that can be augmented with a fine.
In September 2017, the federal court ruled that the flat fine for the sole possession of small amounts has been wrongly inflicted since 2013. Only the consumption of cannabis can be fined. As a consequence, most cantonal police departments changed their policy towards stopping the prosecution of small amounts of cannabis, while others had already done so earlier. However, the cantons of Geneva, Vaud, Valais, Neuchâtel, Jura, Ticino, St. Gallen and both Appenzell still retain their old policy.
On 5 October 2012, the Federal Court invalidated the agreement on hemp culture and trading that came into force on 1 January 2012, which allowed private citizens in the cantons of Geneva, Freiburg, Valais, Vaud, Neuchâtel, Basel-Stadt and Ticino to grow up to four hemp plants (containing less than 1.0% of THC), for violating the federal law on drugs.
On 11 September 2018, a parliamentary initiative by the Green Party, that demanded a law on regulation of cultivation, trade, recreational consumption, youth protection, and taxing of cannabis, was rejected in the National Council by 104 to 86 votes. Meanwhile the "Legalize It" organization is preparing a second popular initiative originally set to launch in April 2018.
In 2016, the cities of Zurich, Basel, Bern, and Geneva stated that they planned to establish pilot cannabis clubs to gauge their utility, limited to 2,000 members total and to be studied for four years. Those pilot projects have been shut down by the Federal Office of Public Health in November 2017 because of a missing legal basis. In December 2017, an absolute majority of members of both parliamentary chambers signed a parliamentary motion to change the law. However, in June 2018, the motion was narrowly rejected by the National Council after it had passed the Council of States. In July 2018, the Federal Council sent a proposition legalizing cannabis studies to the parliament anyway.
|Possession of less than 10 grams of cannabis||100 CHF flat fine|
|Consumption of soft drugs in normal cases (first infraction, or minor quantity, or brief period of consumption)||Fine of 100 CHF or more (depending on the accused's financial circumstances).|
|Consumption of soft drugs, repeated infractions||Increasing fine or monetary penalty (depending on the severity of the infraction and the accused's financial circumstances).|
|Trade in soft drugs, up to 100 g||Monetary penalty of 1–5 daily rates. The daily rate is set by the court and usually amounts to roughly one thirtieth of the accused's monthly income.|
|Trade in soft drugs, 100 g to 1 kg||Monetary penalty of 5–30 daily rates.|
|Trade in soft drugs, 1 kg or more||Monetary penalty of more than 30 daily rates.|
|Possession of more than 4 kg||One to three years of imprisonment|