[PAR] [TLE] John le Carré [SEP] David John Moore Cornwell (born 19 October 1931), known by the pseudonym John le Carré ( ), is a British author of espionage novels.  During the 1950s and the 1960s, he worked for both the Security Service and the Secret Intelligence Service, and began writing novels under his pen name.  His third novel, "The Spy Who Came in from the Cold" (1963), became an international best-seller and remains one of his best-known works.  Following the success of this novel, he left MI6 to become a full-time author. [PAR] [TLE] MI5 [SEP] The Security Service, also MI5 (Military Intelligence, Section 5), is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ) and Defence Intelligence (DI).  MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989.  The service is directed to protect British parliamentary democracy and economic interests, and counter terrorism and espionage within the UK.
[PAR] [TLE] John le Carré [ SEP ] David John Moore Cornwell ( born 19 October 1931 ) , known by the pseudonym John le Carré ( ) , is a British author of espionage novels . During the 1950s and the 1960s , he worked for both the Security Service and the Secret Intelligence Service , and began writing novels under his pen name . His third novel , " The Spy Who Came in from the Cold " ( 1963 ) , became an international best - seller and remains one of his best - known works . Following the success of this novel , he left MI6 to become a full - time author . [PAR] [TLE] MI5 [ SEP ] The Security Service , also MI5 ( Military Intelligence , Section 5 ) , is the United Kingdom 's domestic counter - intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service ( MI6 ) , Government Communications Headquarters ( GCHQ ) and Defence Intelligence ( DI ) . MI5 is directed by the Joint Intelligence Committee ( JIC ) , and the service is bound by the Security Service Act 1989 . The service is directed to protect British parliamentary democracy and economic interests , and counter terrorism and espionage within the UK .
John le Carré worked for a UK service bound by what?
John le Carré worked for a UK service bound by what ?
Security Service Act 1989
Security Service Act 1989