Knives
Idaho Code § 18-3302 and Idaho Code § 18-3327 — a blade of six inches or less is not a deadly weapon, and towns cannot add rules
A deadly weapon includes any dirk, dirk knife, bowie knife or dagger, and any instrument designed or intended to be readily capable of causing death or serious bodily injury.
Six inches or less. A knife with a blade six inches or less is not a deadly weapon under the concealed weapons chapter, and neither is a kitchen knife meant for food, or a taser, stun gun, pepper spray or mace.
One rule statewide. A city, county or other political subdivision may not regulate the carrying, possession, sale or use of knives, apart from public schools, courthouses, law enforcement facilities, jails and prisons, and child care safety standards.
A knife can still be a deadly weapon when used or meant to be used as one, and the assault and battery sections apply. A particular case is a question for a licensed Idaho attorney.
Sources for this section (2)
- Idaho Code § 18-3302 — Concealed weapons
- Idaho Code § 18-3327 — Consistency in knife regulation
Legal information, not legal advice. Verified as of October 2026. Applying it to a particular situation is the work of a licensed Idaho attorney.