“The consumer watchdog’s reliance on whistleblowers as the bedrock of anti-cartel cases is under scrutiny following the embarrassing collapse of the British Airways price-fixing trial. Legal experts warned that offering immunity in exchange for full co-operation with an investigation threatened to undermine Office of Fair Trading prosecutions by giving whistleblowers influence over evidence gathering and fostering complacency among investigators.”
The Guardian, 12th May 2010
Source: www.guardian.co.uk