China changed its law on Friday to allow judgments to be delivered in corruption and terror cases even when the suspects do not appear in court, as Beijing ramps up pressure on dozens of suspected criminals hiding overseas.

Since taking office more than five years ago, President Xi Jinping has waged war on graft at all levels of the ruling Communist Party and has pledged that the fight must continue until corruption is impossible and unimaginable for officials.

The campaign has spread beyond China's borders to graft suspects who have fled abroad, though efforts have been hampered by suspicion among Western nations uneasy about handing over suspects to a system they believe might not provide a fair trial.