The Taiwan High Court yesterday began to hear the appeal by former president Chen Shui-bian (陳水扁), who insisted his life term for graft was “illegal” and argued the evidence used to convict him was insufficient.

Chen was sentenced to life in prison by a district court last month for embezzling state funds, laundering money, accepting bribes and forgery. His wife, Wu Shu-jen (吳淑珍), also received life imprisonment on graft convictions.