Michael Woodford, the British whistleblower sacked from Japanese cameras giant Olympus, is due to begin his multi-million-pound unfair dismissal case against the company at a London tribunal. Woodford is to sue for up to 10 years\' lost pay, citing UK laws on unfair dismissal for whistleblowing and discrimination. He was ousted as chief executive after questioning the board about a $1.7bn (£1.1bn) fraud.