Knives and pepper spray in Illinois (2026)

Last reviewed: 9 October 2026

In short: Illinois makes it unlawful to sell, manufacture, purchase, possess or carry a switchblade or ballistic knife, with exceptions for Firearm Owner's Identification Card holders and the trade for switchblades. Carrying a dagger, dirk or dangerous knife is an offence only with intent to use it unlawfully, and there is no blade-length limit. Non-lethal spray designed solely for personal defence may be carried by a person 18 or older.

RuleWhat applies
Folding pocket knivesCarrying in public placesThe weapons section has no folding-knife rule. Carrying or possessing a dagger, dirk or dangerous knife with intent to use it unlawfully against another is unlawful use of weapons, a Class A misdemeanour. [1]
Locking or one-handed knivesCarrying in public placesSelling, manufacturing, purchasing, possessing or carrying a switchblade knife (a blade that opens automatically by hand pressure on a button, spring or other device in the handle) or a ballistic knife is unlawful use of weapons, a Class A misdemeanour. [1]
Fixed-blade knivesCarrying in public placesCarrying or possessing a dagger, dirk, dangerous knife or stiletto with intent to use it unlawfully against another is unlawful use of weapons, a Class A misdemeanour. [1]
Pepper sprayCarrying in public placesCarrying on or about the person or in a vehicle a tear gas gun projector or any object containing noxious liquid gas or substance is unlawful, other than an object containing a non-lethal noxious liquid, gas or substance designed solely for personal defence carried by a person 18 or older. [1]
Exceptions and legitimate reasonsCarrying in public placesThe switchblade ban does not apply to a person with a valid Firearm Owner's Identification Card or to a person or entity in the business of selling or manufacturing switchblade knives. Crossbows, compound bows and underwater spearguns are exempt from the definition of ballistic knife. [1]
Automatic (switchblade) knivesCarrying in public placesSelling, manufacturing, purchasing, possessing or carrying a switchblade knife (a blade that opens automatically by hand pressure on a button, spring or other device in the handle) is unlawful use of weapons, a Class A misdemeanour. The ban does not apply to a holder of a valid Firearm Owner's Identification Card or to a business selling or manufacturing switchblades; ballistic knives are banned outright. [2]
Blade length limitsCarrying in public placesSection 24-1 sets no blade-length limit. Carrying a dagger, dirk, dangerous knife, razor or stiletto is an offence only with intent to use it unlawfully against another. [2]
Pepper spray: size and age limitsCarrying in public placesOnly a person 18 or older may carry an object containing a non-lethal noxious liquid, gas or substance, and only if it is designed solely for personal defence. Section 24-1 sets no container-size limit or permit requirement. [2]

Notes

  • The dagger, dirk and dangerous knife offence applies only when the person carries or possesses the knife with intent to use it unlawfully against another.
  • The exemption applies to a person with a currently valid Firearm Owner's Identification Card issued by the Illinois State Police, or to a person or entity engaged in the business of selling or manufacturing switchblade knives.

Sources

  1. Illinois General Assembly: 720 ILCS 5/24-1 Unlawful use of weapons (Internet Archive snapshot of 2024) (consulted 9 October 2026) · all sources
  2. Illinois General Assembly: 720 ILCS 5/24-1 Unlawful use of weapons (Internet Archive snapshot of 26 September 2026) (consulted 10 October 2026) · all sources

Illinois and neighbouring states

StateFolding pocket knivesLocking or one-handed knivesFixed-blade knivesPepper sprayExceptions and legitimate reasons
Illinois
Only with intent to use unlawfully
Banned unless FOID holder or trade
Only with intent to use unlawfully
Allowed 18+ if designed solely for personal defence
FOID holders and the knife trade exempt from switchblade ban
Iowa
Only an offence if used in a crime
Ballistic knife: class D felony; switchblade listed
Only an offence if used in a crime
⚠ Not yet verified
⚠ Not yet verified
Indiana
No general ban; school property barred
No separate rule
Barred on school property
No carry offence; can be a 'deadly weapon' by use
School authorisation; secured in vehicle
Kentucky
Ordinary pocket knife: not a deadly weapon
No separate rule; "ordinary pocket knife" test
Concealed: only if 21+ or licensed
Not listed as a deadly weapon
Own property; 21+ may carry without licence
Michigan
Not named; "dangerous weapon" concealed is banned
Former mechanical-opening ban repealed (2017)
No concealed carry (felony); hunting knife excepted
Allowed (OC up to 18%); no sale to minors
Home, business, own land; hunting knife
Missouri
Concealed carry banned only in restricted areas
⚠ Not yet verified
Concealed ban only in restricted areas
⚠ Not yet verified
—
Wisconsin
Knives excluded from concealed-carry ban
Any knife excluded
Any knife excluded
Allowed; under 18 forfeiture
Self-defence use exempt

More rules in Illinois

Compare with the other states and provinces →

General information, not legal advice. Rules change: check the official source before you fly or ride.