The Intelligence Services Commissioner, is a British regulatory official appointed under Section 59 of the Regulation of Investigatory Powers Act 2000

Regulation of Investigatory Powers Act 2000

The Regulation of Investigatory Powers Act 2000 is an Act of the Parliament of the United Kingdom, regulating the powers of public bodies to carry out surveillance and investigation, and covering the interception of communications...

. 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

MI5

The Security Service, commonly known as MI5 , is the United Kingdom's internal counter-intelligence and security agency and is part of its core intelligence machinery alongside the Secret Intelligence Service focused on foreign threats, Government Communications Headquarters and the Defence...

 and MI6, assuming such actions and activities are not being reviewed by the Interception of Communications Commissioner. Until January 2011, the Commissioner was Sir Peter Gibson

Peter Gibson (judge)

The Rt Hon. Sir Peter Gibson is a retired British barrister and judge who served as the Intelligence Services Commissioner until January 2011...

. In January 2011, the Prime Minister

Prime minister

A prime minister is the most senior minister of cabinet in the executive branch of government in a parliamentary system. In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government. In most systems, the prime...

 David Cameron

David Cameron

David William Donald Cameron is the current Prime Minister of the United Kingdom, First Lord of the Treasury, Minister for the Civil Service and Leader of the Conservative Party. Cameron represents Witney as its Member of Parliament ....

 appointed Sir Mark Waller

Mark Waller

Mark Waller is the former club doctor at Liverpool F.C. Waller first went to Liverpool in the 1970s as a medical student, soon becoming a Liverpool fan. Specialising in emergency medicine, he developed an interest in sports injuries. He was relieved of his duties in June 2010. He has since been...

as the Intelligence Services Commissioner.