Watchkeeping and vigilance
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1334 – Piracy and Armed Robbery Against Ships – (23 June 2009)Guidance to shipowners and ship operators, shipmasters and crews on preventing and suppressing acts of piracy and armed robbery against ships - Annex – Guidance to Shipowners, Companies1, Ship Operators, Shipmasters and Crews on Preventing and Suppressing Acts of Piracy1 and Armed Robbery1 Against Ships - Recommended practices - Watchkeeping and vigilance

Watchkeeping and vigilance

  27 Maintaining vigilance is essential. All too often the first indication of an attack has been when the attackers appear on the bridge or in the master’s cabin. Advance warning of a possible attack will give the opportunity to sound alarms, alert other ships and the coastal authorities, illuminate the suspect craft, undertake evasive manoeuvring or initiate other response procedures. Signs that the ship is aware it is being approached can deter attackers.

  28 When ships are in, or approaching areas of known risk of piracy or armed robbery, bridge watches and look-outs should be augmented, bearing in mind that many attacks are mounted from astern. Additional watches on the stern or covering radar “blind spots” should be considered. Companies should consider investing in low-light binoculars for bridge staff and look-outs. Radar should be constantly manned but it may be difficult to detect low profile fast moving craft on ship’s radars. A yacht radar mounted on the stern may provide additional radar cover capable of detecting small craft approaching from astern when the ship is underway. Use of an appropriately positioned yacht radar when the ship is at anchor may also provide warning of the close approach of small craft.

  29 It is particularly important to maintain a radar and visual watch for craft which may be trailing the ship when underway but which could close in quickly when mounting an attack. Small craft which appear to be matching the speed of the ship on a parallel or following course should always be treated with suspicion. When a suspect craft has been noticed, it is important that an effective all-round watch is maintained for fear the first craft is a decoy with the intention to board the ship from a second craft while attention is focused on the first.

  30 In addition to the use of overt means of transmitting alerts, the ship security alert system could be used in the event of a piracy or armed robbery attack. It should, however, be borne in mind that certain non-disclosure issues prevail with regards to the configuration and locations of the system.

  31 Companies owning or operating ships that frequently visit areas where attacks occur should consider the purchase and use of more sophisticated visual and electronic devices in order to augment both radar and visual watch capability against attackers’ craft at night, thereby improving the prospects of obtaining an early warning of a possible attack. In particular, the provision of night vision devices, small radars to cover the blind stern arcs, closed circuit television and physical devices, such as barbed wire, may be considered. In certain circumstances non-lethal weapons such as acoustic devices, may also be appropriate. Infrared detection and alerting equipment may also be utilized.


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