sentences:  In 1986, he was the public prosecutor for the Commercial Affairs Investigation Department who filed charges against key people in Pan Electric Industries ("Pan-El"), such as Tan Kok Liang, Tan Koon Swan, and Peter Tham, in the aftermath of the company's collapse.For his role in the Pan-El investigations, Knight was commended by then-Finance Minister Richard Hu in 1989.Knight also led the prosecution team in Singapore's first case of insider trading, that of former United Overseas Bank banker Allan Ng.