These excerpts taken from the BP 6-K filed May 22, 2008.
Determination of questions relating to an Appointed Persons rights
169 Subject and without prejudice to the provisions of Article 167, if in any circumstances other than those provided for in that Article any question shall arise as to whether an Appointed Person or a proxy for an Appointed Person has been validly appointed to vote (or exercise any other right) in respect of any Specified Shares or as to the Appointed Number of Specified Shares in respect of which he is entitled to do so, then:
(i) if such question arises at or in relation to a general meeting it shall be determined by the chairman of the meeting or in such other manner as may have been prescribed by regulations or procedures made or established by the Directors under Article 85; and
(ii) if it arises in any other circumstances it shall be determined by the Directors
and any such determination if made in good faith shall be final and conclusive and binding on all persons interested.