Definition of presiding officer:
(N) :
In a general sense, presiding officer is synonymous with chairperson.
(N) :
Every Administrative Review Board, run under the authority of the Office for the Administrative Review of Detained Enemy Combatants, was commanded by a Presiding Officer.
(N) :
The United States of America has charged Guantanamo captives before "military commissions", each presided over by a presiding officer.