The detail of this story is enormously complicated, and it is possible the release of witness statements do not signal the end of the saga.

The government is facing questions about why the case collapsed just weeks before a trial was due to go ahead.

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

The detail of this story is enormously complicated, and it is possible the release of witness statements do not signal the end of the saga.

Deputy national security adviser concluded China was "highly capable and conduct large-scale espionage operations against the UK".

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

Stephen Kinnock says government is ‘deeply disappointed’ CPS abandoned prosecution

Political correspondent Archie Mitchell runs through what we know – and the unanswered questions – about the collapsed China spy case

Statements are at heart of row about who, if anyone, was to blame for collapse of case against two men accused of spying

The disclosure sheds more light than ever before on what the two men were accused of, but raises new questions for the prime minister and prosecutors.