Baltimore City Charter & Code
§ 59-22. Switch-blade knives.
(a) Possession or sale, etc., prohibited. It shall be unlawful for any person to sell, carry, or possess any knife with an automatic spring or other device for opening and/or closing the blade, commonly known as a switch-blade knife.
(b) Penalties. Any person violating the provisions of this section, shall, upon conviction thereof, be fined not more than $500 or be imprisoned for not more than 1 year, or both, in the discretion of the court.