An article on the Windward website on 20th November discusses the central role the Automatic identification System (AIS) plays in tracking ship movements. It looks at AIS Transmission Gaps, a period of time during which a vessel‘s movements are unknown, and explains the 2 types of gaps – AIS Lost Signal and Dark Activity – and why only one of these constitutes a red flag.  Subsequent Parts 2 and 3 of the series of articles will cover how to quickly filter out these false red flags during vessel screening, and how to then investigate the high-risk gaps for potential illicit activity.  The article helpfully starts by explaining how AIS works, then what causes transmission gaps.


This blog is primarily for my own use, to keep informed and up to date. However, if you would like to say thank you (and perhaps help me get a new, better laptop when I am away…) you can “buy me a coffee” at https://www.buymeacoffee.com/KoIvM842y

Author: raytodd2017

Chartered Legal Executive and former senior manager with Isle of Man Customs and Excise, where I was (amongst other things) Sanctions Officer (for UN/EU sanctions), Export Licensing Officer and Manager of the Legal-Library & Collectorate Support Section

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