1. Former China tour guide Yang Yin faces 331 charges for faking receipts at his company Young Music and Dance Studio, through which he received an employment pass, and then permanent residency. A decision made by the State Court to grant him bail was struck down by Chief Justice Sundaresh Menon on Nov 12. The case will be mentioned again on Dec 4, by which time the prosecution hopes to finish its investigations, which include analysis of the suspect's handwriting.

2. Investigations into him are still ongoing for possible offences under the Immigration Act and Employment of Foreign Manpower Act.

3. Apart from the criminal case, the 40-year-old Singapore permanent resident also faces civil suits by Madam Chung Khin Chun's niece Madam Hedy Mok. She is suing Mr Yang for allegedly breaching his legal duties and manipulating her aunt into giving him control of her assets. Yang however claims that Madam Chung wanted him as a "grandson".

He met her in 2008, when he acted as her personal tour guide during her trip to China. The next year, he moved into her $30 million Gerald Crescent bungalow. In 2011, he became a Singapore permanent resident. A year later, the widow granted him a Lasting Power of Attorney (LPA), giving him control of her assets.

When Madam Mok, 60, found out, she took her aunt to live with her, evicted Yang and his family from the bungalow in September and launched a series of legal actions. She managed to get his assets frozen, and last month, she received High Court approval to add Yang's 34-year-old wife, Madam Weng Yandan, as a defendant.

4. The widow has also applied to revoke the LPA she gave Yang. A closed-door court hearing on Friday to decide whether Madam Chung has the mental capacity to do this was adjourned to next week.