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Declaration concerning the Laws of Naval War. London, 26 February 1909.
Chapter II : Contraband of war - Art. 33.
Art. 33. Conditional contraband is liable to capture if it is shown to be destined for the use of the armed forces or of a government department of the enemy State, unless in this latter case the circumstances show that the goods cannot in fact be used for the purposes of the war in progress. This latter exception does not apply to a consignment coming under Article 24 (4)