Official Secrets Act 1939
The Official Secrets Act 1939 is an Act of the Parliament of the United Kingdom. It substitutes a new section 6 into the Official Secrets Act 1920, which limits the scope of that offence to offences under section 1 of the Official Secrets Act 1911. It was enacted in reaction to the "Sandys affair" in 1938, when Duncan Sandys MP was threatened with prosecution under section 6 in an attempt to get him to disclose who had given him information about the inadequate state of the air defences around London.
