
In a general sense, presiding officer is synonymous with chairman. Other uses of the phrase include: ...
Found on
http://en.wikipedia.org/wiki/Presiding_Officer
[ARB] 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. Like the Combatant Status Review Tribunals, also run by OARDEC, the Boards form were modeled after the US Department of Defense`s Army Regulation 190-8 Tribunals, bu...
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http://en.wikipedia.org/wiki/Presiding_Officer_(ARB)
[Guantanamo Military Commissions] ==List of Presiding Officers and suspects== ==Pohl assigns all open cases to himself== When James Pohl replaced Ralph Kohlmann as the Chief Presiding Officer, in 2009, he had the authority to choose which cases were assigned to the other Presiding Officers. Pohl assigned all new cases to himself. ...
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http://en.wikipedia.org/wiki/Presiding_Officer_(Guantanamo_Military_Commiss

The person responsible for ensuring the conduct of the ballot in polling stations. They have to ensure that ballot boxes are kept secure and are responsible for transferring them safely to the count.
Found on
http://news.bbc.co.uk/2/hi/uk_news/politics/vote_2005/basics/4346975.stm

[
n] - the leader of a group meeting
Found on
http://www.webdictionary.co.uk/definition.php?query=presiding%20officer

a member of Parliament elected to preside over, or be in charge of, the business, proceedings and administration of a house of Parliament; in the Senate the President, and in the House of Representatives, the Speaker
Found on
https://www.aph.gov.au/help/glossary
noun the leader of a group meeting
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.