[Defence] The Emergency Powers (Defence) Act 1939 was emergency legislation passed just prior to the outbreak of World War II by the Parliament of the United Kingdom to enable the British Government to take up emergency powers to prosecute the war effectively. It contained clauses giving the government wide powers to create Defence Regulati...
Found on
http://en.wikipedia.org/wiki/Emergency_Powers_(Defence)_Act_1939

The powers to detain a person for an initial assessment to determine whether the use of compulsory powers is appropriate.
Found on
http://www.encyclo.co.uk/local/21465
No exact match found.