In his final report to the British Government Winter listed the following as his main methods of intelligence gathering : Many members of his exotically named " Cairo Gang " possibly named after their meeting place the Cairo Cafe or possibly due to many having served in the Middle East , met their end on Bloody Sunday in November 1920 . The net result was that the intelligence service either retreated into Dublin Castle or evacuated to England . Another of his plans was for potential informers to write to a secret address in England , and the net result as he freely admitted was a pile of hoaxes and abusive mail . However , amidst this mass were some valuable nuggets of genuine intelligence . One informer for Winter , Vincent Fovargue was given safe haven in England , but with informers everywhere even inside Dublin castle ( Michael Collins ' female cousin was a stenographer who passed security checks but was later uncovered and arrested ) Fovargue was tracked down and his body was found upon a golf course with the traditional message ' Spies and traitors beware . ' Another was revealed to be a criminal fraud , uncovered not by Winter but by newspaper reporters and IRA intelligence . The IRA allowed this man to live so that he could be uncovered . Other agents were more successful . One quoted at length in led a raid that captured 3 senior IRA members writing communiques to their subordinates . He rewrote the messages summoning all IRA leaders in the district to a meeting where they were arrested . Maintaining his cover as an IRA member he was placed into custody alongside them , gaining more intelligence from their conversation in jail
Bloody Sunday
Bloody Sunday (1920)
Ormonde Winter