"introduction of Internment without trial" . . . "internment policy of the British Army" . "internment in 1971" . "the introduction of internment" . "Internment" . . "introduction of internment" . . "the decision to introduce internment" . . "United Kingdom" . "internee" . . "interned" . . . "interned in 1971" . . . "internees" . "detention without trial" . "internment" . "introduced in Northern Ireland" . . . . "their internment" . "internment without trial" . . "internment was introduced" . "Operation Demetrius" . "introduced internment" . "after the introduction of internment" . . . . "interned without trial" . "introduction of internment without trial in 1971" . . . . . . . "internment without trial by the Northern Ireland authorities" . "Operation Demetrius" . . . "Internment without trial" . "introduction of" . "had been implemented" . "internment in Northern Ireland" . . "was suspended in Northern Ireland" . "342 persons suspected of IRA involvement" .