First trial In December 2007, the
Crown Prosecution Service indicated it would ask for Wang's trial for murder, burglary and deception to be held '
in camera'. This would make it the first UK murder trial ever heard behind closed doors without access by press or public. Before, during and after the trial, government officials made extensive efforts to ensure Wang's ties to
MI6 remained secret. All that could be reported during the trial was that the
MI6 demanded secrecy, that Wang was a "low-level informant", and that "part of his defence rested on his activities in that role" On 28 March, the jury retired to consider its verdict. On 31 March, Yam was found guilty of stealing £20,000 by deception, and on 1 April also found guilty of
handling stolen goods. The jury was discharged after failing to reach verdicts on the charges of burglary and murder. Wang had participated in the
Chinese democracy movement, and was one of the organizers of the
1989 Tiananmen Square protests. Following a
CCP crackdown on the organisers, Wang fled to Britain via
Hong Kong and was naturalized as a
UK citizen in 1998. The prosecution presented eight weeks of evidence in public. This evidence included
CCTV footage of Yam using Chappelow's bank card, and evidence of Yam paying a restaurant bill. The entirety of the defence case in the retrial was held
in camera. The
Old Bailey judge overseeing the case spent early January 2009 summarising the case, before sending out the jury to deliberate on 9 January. Yam was convicted of murder on 16 January 2009; he was sentenced to life imprisonment, serving a minimum of 20 years.
Case review In 2014, the
Criminal Case Review Commission referred Yam's case to the
Court of Appeal after one of Chappelow's neighbours came forward with claims that he had been threatened by a man with a knife in the area after Yam's arrest, an encounter he had reported to the police who had not in turn informed Yam's defence team. However, the Court of Appeal upheld the conviction in 2017. In 2023, the CCRC confirmed that they would review Yam's case a second time in response to new developments in DNA testing which had led to the exoneration of
Andrew Malkinson earlier in the year. ==Book==