Mumbai: The police custody of ex-world billiard champion Michael Ferreira’s former daughter-in-law, who was held in connection with the QNET scam, was Tuesday extended till September 22 with investigators seeking to examine her earnings and investments she made using the illicit money. “Susan Chatterjee was produced before a special court which extended her police custody till September 22,” said Additional Police Commissioner (EOW) Rajvardhan Sinha. The investigators sought her extension in police custody as they want to find out complete details of her income since she enrolled in the company and the investments she made using the ill-gotten money, another officer said adding that, “the court accordingly extended her police custody.”