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1. In taking any measures for investigation or arrest or otherwise exercising jurisdiction in connection with any offence committed on board an aircraft, the Contracting States shall pay due regard to the safety and other interests of air navigation and shall so act as to avoid unnecessary delay of the aircraft, passengers, crew or cargo.
2. Each Contracting State, when fulfilling its obligations, or exercising a permitted discretion under this Convention, shall act in accordance with the obligations and responsibilities of States under international law. In this respect, each Contracting State shall have regard for the principles of due process and fair treatment.