Employer of Winston Peter's hecker launches investigation

A Wellington worker's heated exchange with Winston Peters at a very public press conference has landed him hot water with his employer, who happens to do a fair bit of work for the government. The heckler was wearing a lanyard that identified his employer as engineering company Tonkin and Taylor. It raises a heap of questions about what people can and can't say when they are off the clock. Employment law specialist Jennifer Mills spoke to Lisa Owen.