4. States should adopt measures for the notification to the State of registry of an unlawfully diverted aircraft when such aircraft has landed in their territoryr 5. When a State has taken into custody any person suspected of committing an unlawful diversion of an aircraft in flight, it should immediately notify the State of nationality of that person, the State of registry of the aircraft, and if it considers it advisable, any other interested States of the fact that such person is in custodyr 6. The State of registry of an unlawfully diverted aircraft, the State of nationality of a person taken into custody on suspicion of having committed the unlawful diversion, and any other interested State should supply expeditiously to the State of landing any relevant information which is available regarding the person taken into custodyr 7. Without prejudice to its obligations under paragraphs 1 and 2 hereof, the State of landing, in accordance with its national law, should inquire into the aeronautical aspects of the act of unlawful diversion and dispatch its findings to the State of registry and to the Council of the International Civil Aviation Organization as soon as it is possible to do sor 8. The State of registry of an aircraft which has been unlawfully diverted should, in accordance with its national law, forward, as soon as practicable, a report on the aeronautical aspects of the incident to the Council of the International Civir Aviation Organization for analysis and evaluation, 9. In situations in which an aircraft is leased to, and operated by, a carrier of a State other than the State of registry, the State of the carrier should have the same rights and responsibilities as recommended herein for the State of registry. A23-22: Refusal to allow unlawfully seized aeroplanes to land 
**Analysis**
The text appears to be related to international aviation regulations and the procedures to follow in case of an unlawful diversion of an aircraft. It outlines the responsibilities of various states, including the state of registry, the state of nationality, and the state of landing, in providing information and conducting investigations. The text does not mention any specific economic, environmental, or social issues, but rather focuses on the technical and procedural aspects of aircraft diversion.

**Category**
Transport and communication