The BIOT Commissioner is appointed by Her Majesty the Queen by instructions through a Secretary of State. Mr Colin Roberts (Director of the FCO's Overseas Territories Directorate (OTD)) is the current BIOT Commissioner.
Under section 7 of the BIOT (Constitution) Order 2004, the Commissioner appoints a Commissioner's Representative, a Deputy Commissioner and a BIOT Administrator. There is in addition an Assistant Administrator.
The current Commissioner's representative is a Royal Navy commander appointed by the Ministry of Defence as Commander British Forces at BIOT. The Deputy Commissioner and the BIOT Administrator are currently members of OTD.