The provisions of the preceding paragraph do not apply, in case of violation of blockade, to correspondence destined for or proceeding from a blockaded port.
Article 2
The inviolability of postal correspondence does not exempt a neutral mailship from the laws and customs of maritime war as to neutral merchant-ships in general. The ship, however, may not be searched except when absolutely necessary, and then only with as much consideration and expedition as possible.
Chapter II. The Exemption from Capture of certain Vessels
Article 3
Vessels used exclusively for fishing along the coast or small boats employed in local trade are exempt from capture, as well as their appliances, rigging, tackle, and cargo.
They cease to be exempt as soon as they take any part whatever in hostilities.
The Contracting Powers agree not to take advantage of the harmless character of the said vessels in order to use them for military purposes while preserving their peaceful appearance.
Article 4
Vessels charged with religious, scientific, or philanthropic missions are likewise exempt from capture.
Chapter III. Regulations regarding the Crews of Enemy Merchant-ships Captured by a Belligerent
Article 5
When an enemy merchant-ship is captured by a belligerent, such of its crew as are nationals of a neutral State are not made prisoners of war.
The same rule applies in the case of the captain and officers likewise nationals of a neutral State, if they promise formally in writing not to serve on an enemy ship while the war lasts.
Article 6
The captain, officers, and members of the crew, when nationals of the enemy State, are not made prisoners of war, on condition that they make a formal promise in writing, not to undertake, while hostilities last, any service connected with the operations of the war.
Article 7
The names of the persons retaining their liberty under the conditions laid down in Article 5, paragraph 2, and in Article 6, are notified by the belligerent
