Chinachem tycoon Nina Wang Kung Yu-sum - accused of forging husband Teddy Wang Teng-huei's will - was once seen practising his signature, it was claimed in the top court yesterday. According to a witness statement by Teddy's sister, Teresa Tak Shyan Sun, she saw Ms Wang practising Chinese characters when they lived in the family home in 1955. 'I still recollect that the defendant would imitate Teng-huei's Chinese signature and proudly told me that her imitation of Teng-huei's signature was very good,' Ms Sun said. She also claimed the handwriting in the contested four-page Chinese will, dated March 12, 1990, was Ms Wang's, the Court of Final Appeal was told. The statement is due to form part of the evidence in a probate hearing between Asia's richest woman and her father-in-law, Wang Din-shin. The pair have fought a long-running legal battle over Teddy Wang's estate. Yesterday, barrister Daniel Fung Wah-kin, SC, for Ms Wang, referred to the statement to support an application for leave to appeal against the Court of Appeal's decision in July refusing to postpone the probate hearing, pending the outcome of criminal investigations of the forgery allegation. But Mr Justice Kemal Bokhary, sitting with Mr Justice Patrick Chan Siu-oi and non-permanent judge John Mortimer, refused to grant leave to appeal. Ms Wang, 64, took over as Chinachem Group chairwoman after her husband was kidnapped on April 10, 1990. He was declared legally dead by a High Court judge on September 22, 1999. Mr Wang Snr, in his late 80s, claims a will dated March 15, 1968, names him as sole executor and beneficiary, while Ms Wang claims she was left the entire estate in the 1990 will. A report was made to police by Mr Wang Snr in October 1990, accusing Ms Wang of forging the will and committing perjury. The Commercial Crime Bureau is still investigating. Mr Fung told the Court of Final Appeal that Ms Wang's team had only received the witness statement on Monday. He argued that Ms Wang could not enjoy her right of silence and privilege against self-incrimination if the civil hearing went ahead because she would have to testify. He said criminal charges were likely to be laid if the civil trial resulted in findings that incriminated Ms Wang, who has the burden to prove the authenticity of the 1990 will. Yesterday's hearing came a day after Ms Wang was hit with a writ filed by Mr Wang Snr claiming she had started diluting her husband's interests in a key Chinachem company just four months after his abduction.