Gibson has also served, between April 2006 and December 2010, as the UK's Intelligence Services Commissioner, and was appointed by David Cameron in July 2010 to lead the Detainee Inquiry.
[citation needed] He served as a judge of the Employment Appeal Tribunal from 1984 to 1986, and as Chairman of the Law Commission for England and Wales from 1990 to 1992.
[6] On 1 April 2009, Gordon Brown appointed him ISC for a second term,[7] though Gibson stepped down early, at the end of 2010, in order to chair an inquiry into "whether the UK was implicated in the improper treatment of detainees held by other countries that may have occurred after 9/11".
They included that the Inquiry was to be non-statutory, that it was of fundamental importance to protect national security and not to undermine international intelligence sharing undertakings and that there were limitations on what could be reviewed in public.
[10] Human and civil rights and other advocacy groups criticised the Inquiry, alleging that it lacked independence, impartiality, openness that it failed to meet what it called the UK's stringent obligations under domestic and international law to comprehensively investigate claims of torture.