YouGov survey — 2,053 GB adults, March–April 2026

Cannabis policy preference by party

Conservative and Reform voters favour criminalisation; Green voters are the clearest outlier, with 54% supporting legalisation.

Remain criminal Decriminalise Legalise
Policy preference by party: Conservatives 54% criminalisation, Reform 42%, Labour 30%, Lib Dem 27%, Greens 22%. Legalisation: Conservatives 17%, Reform 34%, Labour 34%, Lib Dem 37%, Greens 54%.

Notable: Reform UK voters report joint-highest lifetime cannabis use at 43% — level with Green voters — yet 42% favour keeping cannabis a criminal offence.

Source: YouGov. Analysis: Business of Cannabis / Prohibition Partners