Hyflux trial: Key information omitted when Olivia Lum was questioned, says Davinder Singh

The defence team for Hyflux founder Olivia Lum is claiming a lead investigator omitted key evidence to support the case against the former CEO. This includes a letter from six banks expressing support for a loan despite concerns about the firm's plan to build a power plant and sell electricity to the grid. Jeraldine Yap with the story.