The Intelligence Services Commissioner, is a British regulatory official appointed under Section 59 of the Regulation of Investigatory Powers Act 2000.[1] He is tasked with reviewing actions and warrants taken by the Secretary of State under the Intelligence Services Act 1994 and the activities of British intelligence only in regards to the use of surveillance, covert human intelligence sources (i.e. agents) and interception of communications by MI5[2] and MI6[3], assuming such actions and activities are not being reviewed by the Interception of Communications Commissioner.[4] Until January 2011, the Commissioner was Sir Peter Gibson.[1] In January 2011, the Prime Minister David Cameron appointed Sir Mark Waller as the Intelligence Services Commissioner.[5]