Appeal to all MI5 staff for information in BBC spy case
The case centres around a BBC investigation over how an MI5 agent used his role to abuse his girlfriend
Prime Minister Sir Keir Starmer ordered the investigation in September after the BBC revealed that MI5 had lied to three courts.
The Investigatory Powers Commissioner Sir Brian Leveson, who is overseeing the inquiry, said it was "surprising" that new material was being uncovered years after the case began.
MI5's reg
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