Part II Regional Instruments (b) the act is committed against a State or government facility of that State abroad, including an embassy or other diplomatic or consular premises, and any other property, of that State; or (c) the act is committed by a stateless person who has his or her habitual residence in the territory of that State; or (d) the act is committed on board an aircraft which is operated by any carrier of that State; and (e) the act is committed against the security of the State Party. 3. Upon ratifying or acceding to this Convention, each State Party shall notify the Secretary General of the Organization of African Unity of the jurisdiction it has established in accordance with paragraph 2 under its national law. Should any change take place, the State Party concerned shall immediately notify the Secretary General. 4. Each State Party shall likewise take such measures as may be necessary to establish its jurisdiction over the acts set forth in Article 1 in cases where the alleged offender is present in its territory and it does not extradite that person to any of the States Parties which have established their jurisdiction in accordance with paragraphs 1 or 2. Article 7 1. Upon receiving information that a person who has committed or who is alleged to have committed any terrorist act as defined in Article 1 may be present in its territory, the State Party concerned shall take such measures as may be necessary under its national law to investigate the facts contained in the information. 2. Upon being satisfied that the circumstances so warrant, the State Party in whose territory the offender or alleged offender is present shall take the appropriate measures under its national law so as to ensure that person's presence for the purpose of prosecution. 3. Any person against whom the measures referred to in paragraph 2 are being taken shall be entitled to: (a) communicate without delay with the nearest appropriate 212