Cannabis Law in the UK: What's Legal, What's Not

Short answer: No, recreational cannabis use is illegal in the United Kingdom. It remains a Class B controlled drug under the Misuse of Drugs Act 1971.

Current Legal Status

Medical Cannabis: The Narrow Exception

• Legal since November 1, 2018 (rescheduled from Schedule 1 to Schedule 2).
• Only specialist doctors (not GPs) can prescribe — typically for: severe epilepsy (Dravet/Lennox-Gastaut), MS spasticity, chemotherapy nausea, chronic pain (refractory).
• NHS prescriptions extremely rare (NICE guidance restrictive). Most patients access privately (£150–300/month).
• Products: Sativex (nabiximols), Epidyolex (CBD), unlicensed oils/flower via "special license."

CBD: The Legal Grey Market

• CBD isolate/broad-spectrum (<0.2% THC) legal as "novel food" (FSA authorization required since 2021).
• High-street shops sell oils, edibles, vapes, cosmetics — quality varies wildly.
• Full-spectrum (with trace THC) technically illegal but widely tolerated.

Enforcement Reality

• Possession of small amounts: Often → cannabis warning (first), Penalty Notice for Disorder £90 (second), arrest (third). Varies by police force.
• London/Metropolitan: De facto decriminalization for personal use (focus on supply).
• Drug driving: Zero-tolerance — 2 µg/L THC blood limit. Roadside swabs used.

Reform Landscape

• Public opinion: ~50–55% support legalization/regulation (YouGov, 2023).
• Political: Lib Dems, Greens, SNP support reform. Labour: "review." Conservatives: opposed.
• London Mayor Sadiq Khan: Pilot diversion scheme (education not prosecution) for 18–24s.
• Overseas precedents: Canada, Germany, Malta, Luxembourg, 24 US states legalized — pressure mounting.

Bottom line: Don't risk it. Medical route exists but is narrow. CBD is legal if compliant. Recreational use remains criminal—with consequences for travel, employment, housing, and immigration status.