Rookie wartime MI5 "watchers" were advised they needed to be prepared to offer a big tip if they had to tell a taxi driver to "follow that cab" when pursuing a suspect, newly declassified documents ...

Papers released to National Archives in Kew, west London, show deputy prime minister John Prescott and foreign secretary Jack Straw both urged delay, warning of a surge in immigration unless some ...

Dr Sam Caslin explores sources from The National Archives in Kew looking at their importance and using them to investigate key historical events. This clip is from the series Hunting for History.

The guidance is contained in a booklet for recruits during World War Two, which will go on display at the National Archives in Kew, west London Rookie wartime MI5 "watchers" were advised they ...