What is does do is put far greater pressure on detectives to put up or shut up.

BBC: Police bail in the dock

"There's only one way to shut them up and that's put Biarritz on the back foot and put them in the corners and try and bury them, " he told BBC Sport.

BBC: Bath coach Steve Meehan looks to quieten Biarritz crowd

Last month, The Takeover Panel--the U.K.'s takeover regulator--set a put up or shut up deadline of 5 p.m. on December 15 for Macquarie Bank, Australia's biggest investment bank, to come forward with a bid for the LSE.

FORBES: Magazine Article

When John Major resigned the leadership of the Conservative Party in 1995, inviting detractors to "put up or shut up", John Redwood challenged him, standing on a Eurosceptic platform.

BBC: John Redwood