.3 where an incident caused, or threatened, serious harm to the environment of that State, or within those areas over which the State is entitled to exercise jurisdiction as recognized under international law; or
.4 where the consequences of an incident caused, or threatened, serious harm to that State or to artificial islands, installations or structures over which it is entitled to exercise jurisdiction; or
.5 where, as a result of an incident, nationals of that State lost their lives or received serious injuries; or
.6 that has at its disposal important information that may be of use to the investigation; or
.7 that, for some other reason, establishes an interest that is considered significant by the lead investigating State;
.8 that was requested by another State to assist in the repression of violence against crews, passengers, ships and cargoes or the collection of evidence; or
.9 that intervened under UNCLOS article 100, exercised its right of visit, under UNCLOS article 110, or effected the seizure of a pirate ship or aircraft under UNCLOS article 105."
