Recently, Morocco-based enterprise OCP, a world-leading producer of phosphate and fertiliser, took a difficult but commendable decision: it told a South African court it would not participate in a trial relating to the seizure of a vessel transporting its phosphate cargo through South African waters.

This comes as the latest in a series of developments that should be of broad and serious concern, as it could determine whether global maritime commerce — an industry responsible for about 90% of world trade – can be hijacked by a new and virulent form of political piracy.