# Gun Barrel Proof Act 1978, Paragraph 16


For section 139 of the Act of 1868 there shall be substituted the following section—
“ Detention of barrels with forged etc. marks brought to proof house.
139 Where a barrel bearing—
(a) a mark of a forgery or counterfeit of a stamp or part of a stamp which is or at any time was provided or used by either of the Two Companies or which is or at any time was a convention proof mark ; or
(b) a forged or counterfeit mark or imitation of a mark of any such stamp or part of a stamp,
is brought to the proof house or any branch proof house of either of the Two Companies, the Company shall detain the barrel and any small arm or part of a small arm of which the barrel forms part.”

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Source: https://www.legislation.gov.uk/ukpga/1978/9/schedule/3/paragraph/16 (the official version)
Page: https://openlegislation.uk/gun-barrel-proof-act-1978/schedule-3/paragraph-16
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.