Chapter 2. Unlawful Possession, Sale, Or Transportation of California Penal Code >> Division 11. >> Title 3. >> Part 6. >> Chapter 2.

Any person, firm, or corporation who within this state knowingly sells or offers for sale, possesses, or transports any tear gas or tear gas weapon, except as permitted under the provisions of this division, is guilty of a public offense and upon conviction thereof shall be punishable by imprisonment in the county jail for not exceeding one year or by a fine not to exceed two thousand dollars ($2,000), or by both that fine and imprisonment.
Each tear gas weapon sold, transported, or possessed under the authority of this division shall bear the name of the manufacturer and a serial number applied by the manufacturer.
(a) Any person who changes, alters, removes, or obliterates the name of the manufacturer, the serial number, or any other mark of identification on any tear gas weapon is guilty of a public offense and, upon conviction, shall be punished by imprisonment pursuant to subdivision (h) of Section 1170 or by a fine of not more than two thousand dollars ($2,000), or by both that fine and imprisonment.
  (b) Possession of any such weapon upon which the same shall have been changed, altered, removed, or obliterated, shall be presumptive evidence that such possessor has changed, altered, removed, or obliterated the same.