Chicago – Unlawful to possess switchblades. See, CHICAGO, ILL., MUNICIPAL CODE § 8-24-020 (2005). Concealed carry of dirks, daggers, stilettos, bowie knives, “commando knives”, any knife with blade greater than two and a half inches, ordinary razors, and “other dangerous weapon[s]” prohibited. See, id. Unlawful for person under 18 years of age to carry or possess knife with blade two inches in length or longer. See, id. Carry on person or in vehicle passenger compartment of “utility knife” (e.g., box cutter) by person under 18 years of age prohibited. Certain exceptions apply. See, id. at § 8-24-021.  (Excerpted from Knife Laws of the Fifty States: A Guide for the Law-Abiding Traveler, page 48).