Lawmakers in charge of oversight of Britain's national security launched an urgent probe after a botched effort to prosecute two suspects for spying for China.

Both the Tories and Liberal Democrats are calling on government to publish evidence it submitted in the now-collapsed case.

Questions remain over trial collapse even as publication of key evidence scuppers Tory’s main line of attack

Chairs of home affairs, foreign affairs and justice committees to be among those involved in inquiry

Lawmakers in charge of oversight of Britain's national security launched an urgent probe after a botched effort to prosecute two suspects for spying for China.