A State where an aircraft subjected to unlawful interference has landed notifies the State of Registry and the State of the Operator of the landing by the fastest means and sends all other relevant information the same way to (a) those two States, (b) each State whose citizens were killed or injured, (c) each State whose citizens were held hostage, (d) each State whose citizens are known to be on board and (e) ICAO.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.