If the Intelligence and Security Committee is to be an effective scrutineer, it must be able to rely on the accuracy of the information provided by the security services

Recent events at the Intelligence and Security Committee (ISC), the Parliamentary body tasked with holding MI5, MI6, and GCHQ to account, have shown the difficulty of knowing fully the activities of these organisations. Andrew Defty explores the possibility that representatives from GCHQ may have recently given a misleading impression to the ISC.