China-UK relations

The UK has approved plans for a large embassy, but opponents warn it could be used as a base for spying.

Critics of the project - including some Labour MPs - warn it could pose a security risk.

The government insists no decision has been made as MPs on all sides warn of a threat to national security.

Nine MPs raise security concerns about the proposed site, just days before the deadline for a decision.

The campaign saw letters containing fake images of Carmen Lau sent to her neighbours.

Some believe China's mega-embassy could be a hub for espionage in the heart of London.

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