# The European Convention on Extradition Order 2001, Paragraph 4


If air transport is used, the following provisions shall apply:
(a) when it is not intended to land, the requesting Party shall notify the Party over whose territory the flight is to be made and shall certify that one of the documents mentioned in Article 12, paragraph 2(a) exists. In the case of an unscheduled landing, such notification shall have the effect of a request for provisional arrest as provided for in Article 16, and the requesting Party shall submit a formal request for transit:
(b) when it is intended to land, the requesting Party shall submit a formal request for transit.

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Source: https://www.legislation.gov.uk/uksi/2001/962/schedule/1/crossheading/transit/paragraph/4 (the official version)
Page: https://openlegislation.uk/european-convention-on-extradition-order-2001/schedule-1/crossheading-transit/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.