Cannabis — United Kingdom
What travelers need to know about cannabis in United Kingdom. What is legal at home can be a serious crime here — each rule links to its official source.
Cannabis in United Kingdom: prohibited — what is legal at home can be a serious crime here.
Cannabis is illegal in the UK as a Class B drug, and a product that is legal in a US state does not become legal here: the Home Office states that other countries control regimes do not override UK law. CBD is the trap most travellers miss. A CBD product counts as a Class B, Schedule 1 controlled drug unless it meets the exempt-product test, and the Home Office measures that 1 milligram limit per container, not per dose, so an ordinary US-bought bottle of CBD oil can be a controlled drug here. Two rules also catch people carrying nothing themselves: under section 8 of the Misuse of Drugs Act 1971 it is an offence to be the occupier of premises, or concerned in their management, and knowingly permit cannabis to be smoked there, which carries up to 14 years, against a 5-year maximum for holding cannabis yourself; and section 37(3) treats anything under your control as being in your possession even while somebody else is physically holding it. A third rule shifts the burden onto you: under section 28, once the prosecution has proved that you had the drug, it is a defence for the accused to prove that he neither knew of nor suspected nor had reason to suspect the fact alleged, and that section expressly covers simple possession under section 5(2). An "I didn't know it was in my bag" account is therefore something the defence has to raise and support, not something the prosecution must disprove from the outset.
Possession of a Class B drug carries up to 5 years in prison, an unlimited fine, or both. In England and Wales the police can instead give a warning or an on-the-spot fine of up to 90 pounds for cannabis, and being found with it repeatedly can move you up to the maximum penalty. That fixed-penalty route does not exist in Scotland, where the equivalent is a Recorded Police Warning, which the Crown Office describes as an enforcement of the law and not decriminalisation. Section 8 of the Misuse of Drugs Act 1971, being the occupier of premises or concerned in their management and knowingly permitting or suffering cannabis to be smoked there, is punishable on indictment by 14 years, a fine, or both under Schedule 4 to the Act, the same maximum that Schedule sets for permitting the production or supply of a controlled drug of any class. Medical cannabis prescribed abroad cannot be brought in without a Home Office licence, and a Schengen certificate cannot be used for Schedule 1 drugs.
§ GOV.UK - drug penalties, with the Home Office drug licensing factsheet on cannabis, CBD and other cannabinoids and GOV.UK guidance on taking medicine in or out of the UK; Misuse of Drugs Act 1971 ss. 8, 9, 28 and 37(3) and Schedule 4 (legislation.gov.uk, latest revised version, Act body read 15 September 2026)Verified Sep 15, 2026