The State Party in the territory of which the offender or the alleged offender is found shall, in cases to which Article 6 applies, if it does not extradite him, be obliged, without exception whatsoever and whether or not the offence was committed in its territory, to submit the case without delay to its competent authorities for the purpose of prosecution, through proceedings in accordance with the laws of that State. Those authorities shall take their decision in the same manner as in the case of any other offence of a grave nature under the law of that State.

Any person regarding whom proceedings are being carried out in connection with any of the offences set forth in Article 3 shall be guaranteed fair treatment at all stages of the proceedings, including enjoyment of all the rights and guarantees provided for such proceedings by the law of the State in the territory of which he is present.