1295
The Master of any vessel approaching a harbour where this signal is being shown must make application to enter to the Patrol boat which will also be showing the signal and which will, subject to wind and sea, be anchored in the Mouth of the harbour.
After investigating, his entrance will either be permitted or refused. Entrance will only be permitted if the vessel carries a pilot or is preceded by a war ship or a pilot boat. All exemptions from the compulsory use of pilots are cancelled as soon as these signals are hoisted. All Masters must obey these signals and any instructions given to them by the Officer commanding the Search Patrol vessel.
In the event of a warning shot being fired, all vessels in the vicinity of the Patrol boat must stop their engines, as far as safety permits. Failure to comply with these directions may expose the vessel and the crew to danger. Entrance by night will not usually be allowed.
If the signals from the shore show that a Search Patrol is in operation but no patrol boat is stationed at the Mouth of the harbour, it will be necessary for vessels to anchor or to remain steaming up and down outside".
The institution of this patrol service has been announced by wireless on the 2nd. and 7th. of September, 1939 and will continue to be broadcast every day for a week.
Master of all vessels to whom the above is likely to be of interest are hereby informed by the Netherlands East Indies Authorities.
Authority-Hydrographic Service, Bangkok.
HONG KONG, 3rd November, 1939.
No. 207/1939.
On 6th November, 1939, it has been reported by the Japanese Naval Authorities of floating mines near Boca Tigris. It is possible that some of these might drift out into the open sea.
All craft are warned to keep a good look out.
HONG KONG, 7th November, 1939.