„Ministerial responsibility“. GCHQ. 23 March 2016. Suarchyvuotas originalas 7 July 2018. Nuoroda tikrinta 25 May 2017. „Day-to-day ministerial responsibility for GCHQ lies with the Foreign Secretary.“
„Ministerial responsibility“. GCHQ. 23 March 2016. Suarchyvuotas originalas 7 July 2018. Nuoroda tikrinta 25 May 2017. „Day-to-day ministerial responsibility for GCHQ lies with the Foreign Secretary.“