Pepper spray laws in the UK :
If you’ve been following the shocking Heathrow Airport Terminal 3 pepper spray incident December 2025, you’ve probably asked yourself: “Wait — isn’t pepper spray legal for self-defence in some places? Why was everyone acting like it was a chemical weapon?”
Short answer: In the United Kingdom, pepper spray (and anything similar) is 100 % illegal to possess, carry, or use — even for self-defence. The chaotic morning of 7 December 2025 in Heathrow’s Terminal 3 car park showed exactly why the UK takes such a hard line.
Why Is Pepper Spray Banned in the UK?
Under the Firearms Act 1968 (Section 5(1)(b)), any weapon that discharges a “noxious liquid, gas or other thing” is classified as a prohibited firearm. That includes:
- Classic pepper spray (oleoresin capsicum or OC spray)
- CS gas spray
- Mace
- PAVA spray (the synthetic version police use)
- Even some animal-repellent bear sprays
Possession alone — even in your home — carries a minimum 5-year prison sentence and an unlimited fine. Carrying it in public? Expect up to 10 years if the courts decide it was for self-defence purposes.
The UK government’s stance is simple: “Self-defence weapons often become offensive ones in the wrong hands.” The Heathrow Airport Terminal 3 pepper spray incident December 2025 is now being quoted in Parliament as a textbook example — a personal dispute escalated instantly because one person had illegal spray.
What Actually Happened at Heathrow That Morning?
Quick recap: During a targeted robbery in a Terminal 3 lift, one of the attackers discharged pepper spray. The fumes spread rapidly through the multi-storey car park, injuring 21 bystanders (including a toddler) and triggering a full-scale emergency response.
The Met Police later confirmed the spray was not police-issue PAVA — it was illegally imported or homemade. That single illegal canister turned a “normal” Sunday morning into a scene that looked like a terror attack.

Pepper Spray Laws in the UK vs the Rest of the World
| Country | Legal for civilians? | Notes |
|---|---|---|
| United Kingdom | No | Minimum 5-yr sentence |
| United States | Yes (most states) | Varies by state |
| Canada | No (restricted) | Only police |
| Germany | Only low-strength “animal defence” sprays | |
| Australia | No (prohibited weapon) |
The UK is one of the strictest nations on the planet — alongside places like Japan and Singapore.
Legal Self-Defence Alternatives in the UK
You’re not completely defenceless — just choose wisely:
- Personal attack alarms (130 dB+) – legal and very effective
Tactical pens or keychain torches – legal if not marketed as weapons
Self-defence classes – the best “weapon” you’ll ever carry
Anything “made, adapted, or intended” for harming someone (even if you bought it “just in case”) instantly becomes an offensive weapon under the Criminal Justice Act 1988.
What Charges Will the Heathrow Suspects Face?
The 31-year-old already arrested is facing:
- Section 5 Firearms Act (possession of prohibited weapon)
- Grievous bodily harm (Section 18 or 20 Offences Against the Person Act)
- Robbery
- Child cruelty (due to the 3-year-old victim)
If convicted on the firearms charge alone, he’s looking at a mandatory 5 years, even if it’s his first offence.
Final Thought
The Heathrow Airport Terminal 3 pepper spray incident December 2025 wasn’t just a travel disruption — it was a stark reminder that the UK’s strict laws exist for a reason. One illegal canister injured 21 innocent people in seconds. Stay safe, stay legal, and maybe invest in a good alarm instead.
Related: Read the full breakdown of the Heathrow Airport Terminal 3 pepper spray incident December 2025 and what it means for airport security.
Quick FAQ: Pepper Spray Laws in the UK
Q: Can I carry a small keyring pepper spray “just in case”?
No. Possession anywhere (home, car, bag) is illegal.
Q: What if I buy “criminal identifier spray” (dye-based)?
Legal, as long as it contains no irritants.
Q: Can I carry it if I’m a woman travelling alone?
Still illegal. The law doesn’t make exceptions.
Q: What if I’m ex-military or have a “good reason”?
Still illegal. Only police and a handful of licensed pest-control workers get exemptions.
Q: Can I carry it in my checked luggage when flying?
Absolutely not — banned worldwide on aircraft.