A BUSINESSMAN threatened to assault the family of his former live-in girlfriend to get her back, Eastern Court heard yesterday. Lam Hing-keung, 32, also sent notes to her family abusing the woman. Lam told magistrate Yung Yiu-wing he still wanted to be with his former lover, who was not named in court. His main concern, though, was his birth certificate. 'Your worship, may I get back my birth certificate and other papers from her? These are still in her hands,' Lam asked at the end of yesterday's proceedings. Mr Yung told him to ask his lawyer. The court heard the pair had lived together since September. The relationship soured and they separated last month. In a bid to force the woman to return to him, Lam threatened to find someone to beat up her sister-in-law and to scare her mother. He also wrote notes attacking the woman and dropped them in her family's mail box, the court heard. Noting he felt remorseful after the incident, police agreed not to charge Lam. Mr Yung ordered him to be bound over for 12 months in the sum of $1,000.