Artikel 4

1. A Party which has reasonable grounds to suspect that a vessel flying its flag is engaged in or being used for the commission of a relevant offence, may request the assistance of other Parties in suppressing its use for that purpose. The Parties so requested shall render such assistance within the means available to them.
2. In making its request, the flag State may, inter alia, authorise the requested Party, subject to any conditions or limitations which may be imposed, to take some or all of the actions specified in this Agreement.
3. When the requested Party agrees to act upon the authorisation of the flag State given to it in accordance with paragraph 2, the provisions of this Agreement in respect of the rights and obligations of the intervening State and the flag State shall, where appropriate and unless otherwise specified, apply to the requested and requesting Party, respectively.