Article 6 Basic rules on authorisation

Where the intervening State has reasonable grounds to suspect that a vessel, which is flying the flag or displaying the marks of registry of another Party or bears any other indications of nationality of the vessel, is engaged in or being used for the commission of a relevant offence, the intervening State may request the authorisation of the flag State to stop and board the vessel in waters beyond the territorial sea of any Party, and to take some or all of the other actions specified in this Agreement. No such actions may be taken by virtue of this Agreement, without the authorisation of the flag State.