Pocket Knife → United Kingdom

Folding blades under 3 inches permitted in public. Locking knives and longer blades restricted.

Details

UK knife law under the Criminal Justice Act 1988 and Offensive Weapons Act 2019 is complex. It is legal to carry a non-locking folding pocket knife with a blade no longer than 3 inches (7.62cm) in public without needing a reason. However, carrying any locking blade, fixed blade, or a folding knife with a blade over 3 inches in a public place is an offence unless you have a 'good reason' (e.g., a professional chef carrying knives to work). Prohibited knives — including flick knives, butterfly knives, and disguised knives — are banned regardless of size. Importing prohibited knives into the UK is illegal. Knives must be in checked luggage on flights.

Quantity limit

Personal quantity; one knife

Legal reference

Criminal Justice Act 1988, s.139; Offensive Weapons Act 2019; Restriction of Offensive Weapons Act 1959

Practical advice

A basic non-locking Swiss Army knife or Opinel is fine to carry in the UK. Keep any knife in checked baggage when flying. A multi-tool with a locking blade technically requires justification to carry publicly.

Customs authority

His Majesty's Revenue and Customs (HMRC) · https://www.gov.uk/government/organisations/hm-revenue-customs