UK Knife Law 2026 – The Complete Guide to Selling, Buying & Carrying Knives & Weapons in the UK

Knife laws in the United Kingdom are among the strictest in the world. Whether you own a pocket knife, multi-tool, fixed blade, or outdoor knife, understanding what is legal to buy, own, and carry in public is essential, not just for staying on the right side of the law but for making informed purchasing decisions.

At MJ Outdoors Gear UK, we specialise in knives and outdoor tools for enthusiasts, professionals, and collectors across England, Scotland, Wales, and Northern Ireland. This guide explains current UK knife legislation in clear, practical terms to help our customers stay informed, compliant, and confident in their gear choices.

Who This Guide Is For

This guide is written for:

• Outdoor enthusiasts: Campers, bushcrafters, hikers, and hunters who need reliable fixed blades and folding knives for legitimate activities
• Tradespeople: Builders, chefs, warehouse workers, and professionals who carry knives as tools of the trade
• Collectors: Knife enthusiasts who own, display, or trade blades as a hobby
• First-time buyers: Anyone new to knife ownership who wants to understand the law before making a purchase
• Parents and educators: Those responsible for guiding young people on responsible knife use and legal boundaries

If you fall into any of these categories, this guide will help you navigate UK knife law with clarity.

The Key Laws Behind UK Knife Rules

UK knife legislation is built on several Acts of Parliament. Understanding how they interact is key to knowing your rights and responsibilities.

1. Criminal Justice Act 1988 (as amended)

The cornerstone of UK knife law, the Criminal Justice Act 1988, creates the basic offence of carrying a bladed article in public.

Section 139: Possession of an article with a blade or point in a public place

It is an offence to have an article with a blade or point in a public place without good reason or lawful authority. The only exception is a folding pocket knife with a cutting edge of 3 inches or less that does not lock. This applies to:

• Fixed blade knives
• Locking folding knives
• Folding knives with a cutting edge over 3 inches
• Multi-tools with locking blades
• Other sharply pointed articles

Section 139A: Having an article with a blade or point (or an offensive weapon) on school premises

Carrying any bladed article on school grounds is a separate offence, even if you have "good reason" elsewhere.

Maximum penalties under the Criminal Justice Act 1988:

Offence	Maximum Sentence
Carrying a knife in public (Section 139)	4 years' imprisonment and/or unlimited fine
Carrying a knife on school premises (Section 139A)	4 years' imprisonment and/or unlimited fine

Important: If you are found carrying a knife, it is for you to show you had a "good reason" or lawful authority. The prosecution does not need to prove you intended to use it as a weapon.

2. Knives Act 1997

While the Criminal Justice Act 1988 addresses possession and carrying, the Knives Act 1997 targets the sale, marketing, and glamorisation of knives as weapons.

Section 1: Unlawful marketing of knives

It is an offence to market a knife in a way that indicates or suggests it is suitable for combat, or is otherwise likely to stimulate or encourage violent behaviour involving the use of the knife as a weapon. This includes:

• Advertising imagery showing knives used in fighting poses
• Product names implying combat or violence
• Descriptions emphasising lethality or intimidation

Section 2: Publication of materials promoting knife violence

Publishing material that promotes or encourages the use of knives for violence is a separate offence.

Why this matters for buyers: Reputable UK retailers like MJ Outdoors Gear market knives as tools for outdoor, professional, and collection purposes, never as weapons.

3. Offensive Weapons Act 2019

The Offensive Weapons Act 2019 introduced several significant changes:

Private possession of prohibited weapons

It became an offence to possess certain prohibited weapons even in private, including flick knives, gravity knives, zombie knives, knuckledusters and other items on the prohibited weapons list.

Zombie knives and zombie-style knives and machetes

Zombie knives – blades with a cutting edge, a serrated edge and images or words suggesting they are to be used for violence – have been banned from sale since 2016. Since 24 September 2024 the ban also covers zombie-style knives and machetes: any bladed article with a plain cutting edge, a sharp pointed end and a blade over 8 inches long that also has one or more of the following:

• A serrated cutting edge over 2 inches long (other than a serrated section up to 2 inches next to the handle)
• More than one hole in the blade
• Spikes
• More than two sharp points in the blade

Delivery of knives bought online

• Knives bought online must not be delivered to anyone under 18
• Delivery must be handed to an adult, not left in a safe place or on a doorstep
• Knives must not be delivered to lockers where this is prohibited

4. Crime and Policing Act 2026

The Crime and Policing Act 2026 received Royal Assent in April 2026 and strengthens the rules further. Its knife measures include:

• Two-step age and ID checks for online sales: a photographic ID check (passport or UK driving licence) with a current photo of the buyer at the point of purchase, and a photo ID check by the courier at the point of delivery
• Tougher penalties: the maximum sentence for selling knives to under-18s, and for selling or possessing prohibited weapons, rises from 6 months to 2 years' imprisonment
• A new offence of possessing a knife or offensive weapon with intent to use unlawful violence, with a maximum of 7 years' imprisonment
• Reporting of bulk knife sales to the police

Some of these measures come into force on dates set by the Government. Check GOV.UK for current commencement dates.

What You Can Legally Carry in Public Without Reason

UK law allows one narrow exception for carrying a knife in public without "good reason." This is commonly called a "UK legal carry knife."

To qualify, the knife must be:

• A non-locking folding knife: the blade must fold and must not lock into place when open. Liner locks, frame locks, axis locks, back locks and button locks all count as locking. Traditional slip-joint knives, which are held open by spring tension but fold under pressure, are not locking.
• A cutting edge of 3 inches (7.62 cm) or less: the law refers to the length of the cutting edge of the blade.

What counts as "locking"?

Mechanism	Legal to carry without reason?
Slip joint (no lock, blade folds under pressure)	Yes, if cutting edge is 3 inches or less
Friction folder (blade held by friction only)	Yes, if cutting edge is 3 inches or less
Liner lock	No
Frame lock	No
Axis lock	No
Back lock	No
Button lock	No

Common misconceptions

• "It's a tool, not a weapon": the law does not distinguish. A Stanley knife is a bladed article under Section 139.
• "The blade is under 3 inches": if it locks, this exemption does not apply.
• "I only use it for work": you still need a "good reason" if it's a locking or fixed blade knife.

"Good Reason" Explained with Real-World Examples

If your knife does not meet the "UK legal carry" criteria, you must have a "good reason" to carry it in public.

What counts as "good reason"?

Scenario	Good reason?	Notes
Chef carrying knives to work in a toolkit	Yes	Must be in a bag or case, direct route between home and workplace
Tradesperson with a utility knife on a job site	Yes	Must be work-related, a reasonable tool for the task
A camper walking from the car park to the campsite with a fixed blade	Yes	Direct route, knife stored in bag, not openly worn
Angler with fillet knife going to/from fishing spot	Yes	Must be actively fishing or travelling directly
Collector transporting knives to a knife show	Yes	In a locked container, proof of event (ticket, invitation)
Sikh carrying a kirpan for religious reasons	Yes	Religious reasons are a recognised defence
Wearing a national costume with a ceremonial knife	Yes	Must be a genuine national costume
Walking dog with pocket knife "just in case"	No	Self-protection is never a valid reason
Carrying a knife "for protection" in a rough area	No	Self-defence is explicitly excluded
Having a knife in the glovebox "for emergencies"	No	Readily accessible, no specific good reason

What if police disagree with my "good reason"?

If police believe you do not have a valid reason, they may:

• Arrest you under Section 139
• Seize the knife as evidence
• Charge you with possession of a bladed article

At court, it is for you to prove "good reason" on the balance of probabilities. This requires credible evidence, such as witness statements, work contracts, event tickets, or landowner permissions.

Best practice: Carry documentation where possible. A bushcrafter with a booking confirmation for a course, a chef with a work roster, or a hunter with a landowner's letter strengthens their position significantly.

Banned & Restricted Knives in the UK

Some knives and weapons are prohibited in the UK. It is illegal to sell, buy, hire, lend, give, or import these items, and possession is also an offence in most cases.

Prohibited knives and weapons:

Item	Description	Legal to own?
Flick knives/switchblades	Blade opens automatically by pressing a button, spring or other device in the handle	No
Gravity knives	Blade released by gravity or centrifugal force and locked open	No
Butterfly knives/balisongs	Two-handled knife with blade concealed between handles	No
Disguised knives	Knives concealed in everyday objects – belt buckles, combs, credit cards, pens, lipsticks	No
Stealth knives	A knife or spike whose blade or point is made from a material not readily detectable by a metal detector, and which is not designed for domestic use, food preparation or as a toy. Normal steel-bladed knives with G10, carbon fibre or plastic handles are not stealth knives.	No
Zombie knives	Blade with a cutting edge, a serrated edge and images or words suggesting it is to be used for violence	No
Zombie-style knives and machetes	Blade over 8 inches with a plain cutting edge and sharp point, plus a serrated edge over 2 inches, more than one hole, spikes, or more than two sharp points	No
Cyclone knives	Spiral or rotating blade design	No
Belt buckle knives	Knife blade concealed in belt buckle	No
Sword sticks/sword canes	Blade concealed in a walking stick or cane	No
Push daggers	Blade with a handle designed to fit in the fist so the blade protrudes between the fingers	No
Shurikens / throwing stars	Star-shaped or multi-pointed throwing weapons	No
Curved swords	Curved blade of 50cm or more, unless an exemption applies (for example antiques, certain martial arts and re-enactment uses)	Only with an exemption
Kusari-gama / kyoketsu-shoge	Japanese chain and blade weapons	No
Hand or foot claws/spikes	Spiked weapons worn on hands or feet	No

If you already own a banned knife

The UK government periodically runs surrender schemes where you can hand in prohibited weapons. Check GOV.UK for current schemes.

Do not:

• Attempt to sell it online or at a market
• Give it to someone else
• Carry it to a police station openly

Do:

• Contact your local police for safe surrender arrangements
• Wrap it securely if transporting
• Check gov.uk for current surrender dates

Buying Knives Online in the UK: Age Verification & Compliance

UK law is clear: you must be 18 years or older to purchase any knife. This applies in-store and online, with no exceptions for kitchen knives, pocket knives, or outdoor tools.

Age verification at MJ Outdoors Gear

AGE RESTRICTED PRODUCT – 18+ ONLY. Age verification is required for age-restricted bladed products. Where required, age will also be verified on delivery. Orders cannot be delivered using unattended locker delivery where prohibited.

Warning about non-compliant sellers

Not all online sellers follow the law. Be cautious of:

• Social media sellers with no age verification
• Unverified marketplace listings where age checks are weak
• Overseas sellers shipping knives without UK-compliant delivery
• "Gift" purchases where the buyer is 18+ but the recipient is not

Knife Law by UK Region

While the core rules are similar across the UK, the legislation, enforcement and supplementary laws vary by region.

England & Wales

• Governed by the Criminal Justice Act 1988, the Knives Act 1997, the Offensive Weapons Act 2019 and the Crime and Policing Act 2026
• Crown Prosecution Service (CPS) guidance applies to charging decisions
• Sentencing Council guidelines set starting points for magistrates and judges

Scotland

• The Criminal Law (Consolidation) (Scotland) Act 1995 contains Scotland's own offences for carrying knives and offensive weapons
• Police Scotland takes a strict approach to "good reason", and carrying a knife in urban areas is heavily scrutinised
• Scotland also requires licences for air weapons, reflecting a broader culture of weapon control

Practical note: If travelling to Scotland for outdoor activities, carry documentation (course bookings, landowner permissions) and store knives securely during transit.

Northern Ireland

• Northern Ireland has its own legislation on carrying bladed articles
• Police take a particularly strict view of weapon possession
• Carry laws are interpreted narrowly, and "good reason" can be harder to establish

Penalties for Breaking UK Knife Law (England & Wales)

Offence	Maximum Sentence
Carrying a knife in public (Section 139)	4 years' imprisonment and/or unlimited fine
Carrying a knife on school premises (Section 139A)	4 years' imprisonment and/or unlimited fine
Threatening someone with a bladed article	4 years' imprisonment and/or unlimited fine
Selling a knife to a person under 18	2 years' imprisonment and/or unlimited fine (raised from 6 months by the Crime and Policing Act 2026)
Selling or possessing a prohibited weapon (e.g. zombie knife, flick knife)	2 years' imprisonment and/or unlimited fine (raised from 6 months by the Crime and Policing Act 2026)
Possessing a knife or offensive weapon with intent to use unlawful violence	7 years' imprisonment and/or unlimited fine (new offence, Crime and Policing Act 2026)

Adults convicted of threatening someone with a knife, or of a second offence of possessing a knife in public, face a minimum custodial sentence of 6 months unless the court finds that unjust.

Aggravating factors that increase sentences:

• Offence committed near a school
• Gang-related context
• Offence committed while on bail
• Previous knife-related convictions
• A knife was used to threaten or intimidate

Long-term consequences beyond sentencing:

• Criminal record: may appear on DBS checks
• Employment: many professions bar applicants with weapon offences
• Travel: some countries ask about criminal convictions on entry or visa applications
• Education: universities and colleges may take disciplinary action
• Housing: landlords and social housing providers may take action against tenants with weapon convictions

Practical Scenarios for Outdoor Enthusiasts

Your gear is legal to own. The challenge is transport and carrying. Here are real-world scenarios for responsible knife owners.

Camping in the Peak District

You own an S-TEC Fixed Blade T228700 for camp chores.

• Legal to own: Yes
• Legal to carry to campsite: Yes, with good reason (camping), provided you take a direct route and store the knife in your bag, not openly on your belt
• On public transport: Grey area. Best practice: keep it in a closed bag, not on your person
• Not acceptable: Wearing the knife on your belt while walking through a village to buy supplies

Bushcraft course in Epping Forest

You bring an S-TEC Survival Knife T22188BK-2 for a weekend course.

• Legal to carry to course: Yes, with booking confirmation as proof of good reason
• Legal at course: Yes, under instructor supervision on private land
• Not acceptable: Stopping at a pub on the way home with the knife accessible in your jacket

Hunting trip in the Scottish Highlands

You carry an S-TEC Bowie Black T228699 for deer stalking.

• Legal with permission: Yes, with the landowner's permission and any relevant firearms licences
• Best practice: Keep the knife in a secure case during transport and carry documentation
• Scottish note: Police Scotland may scrutinise more heavily, so carry full documentation

Knife show in Birmingham

You are a collector bringing S-TEC knives to display or trade.

• Legal to transport: Yes, in a locked case with proof of the event (ticket, dealer table confirmation)
• Legal at show: Yes, within the venue
• Not acceptable: Showing knives to friends in a nearby pub car park after the show

Frequently Asked Questions

1. What is the legal knife length in the UK?

You can legally carry a folding, non-locking knife with a cutting edge of 3 inches (7.62 cm) or less without needing a specific reason. Any longer cutting edge, or any knife that locks open, requires "good reason" to carry in public.

2. Can I carry a Swiss Army knife in the UK?

Most Swiss Army knives are legal to carry if they are non-locking and the cutting edge is 3 inches or less. However, some larger or locking models do not meet these criteria. Check your specific model before carrying.

3. Is it legal to carry a knife for self-defence?

No. Self-defence is not a "good reason" under UK law. Carrying a knife for personal protection is a criminal offence.

4. Are butterfly knives legal in the UK?

No. Butterfly knives (balisongs) are prohibited weapons. It is illegal to sell, buy, import, or possess them.

5. Can I carry a knife in my car?

A knife stored in the boot in a closed bag or case is generally acceptable if you have "good reason" for having it. A knife in the glovebox or door pocket, readily accessible, is more likely to be viewed as possession in a public place, especially if you cannot show good reason.

6. Can I post knives within the UK?

Yes, but couriers have restrictions. Knives must be securely packaged and delivered with age verification to an adult. Specialist courier services are recommended.

7. What should I do if police stop me with a knife?

• Stay calm and do not reach for the knife
• Explain your good reason clearly and calmly
• Provide documentation if available (work ID, course booking, landowner permission)
• Comply with all instructions; officers have discretion to arrest if they are not satisfied
• Do not argue at the roadside; contest charges through legal channels if necessary

8. Are antique knives exempt from UK knife law?

Some prohibited weapons are exempt if they are antiques (generally made more than 100 years ago). Carrying an antique knife in public is still subject to the normal "good reason" rules. Keep provenance documentation.

9. Can I buy a knife as a gift for someone under 18?

No. It is illegal to sell a knife to anyone under 18, and you must not buy one on behalf of a minor.

10. Do I need a licence to own a knife in the UK?

No licence is required for legal knives. Prohibited weapons cannot be owned unless a specific legal exemption applies.

Important Legal Reminder

Knife laws are enforced differently across England, Scotland, Wales and Northern Ireland. Laws are also subject to amendment; Parliament regularly reviews knife crime legislation.

For official, up-to-date guidance, always consult:

• GOV.UK: Buying and carrying knives
• Crown Prosecution Service legal guidance
• Your local police force website

Disclaimer

This guide is provided for general informational purposes only and does not constitute legal advice. Laws may change, and interpretations may vary between police forces, prosecutors, and courts. For specific legal guidance relating to your circumstances, consult official UK government sources or a qualified legal professional.

Last updated: October 2026