(Escort of the fugitive by the authorities of the requesting country)
Article 21.
Upon receiving a fugitive surrendered as provided for in paragraph 1 of Article 20, the authorities of the requesting country shall promptly escort the fugitive to the requesting country.
(a) A State Party shall authorize, in accordance with its national procedural law, transportation through its territory of a person being surrendered to the Court by another State, except where transit through that State would impede or delay the surrender.