Jailed former opposition leader Anwar Ibrahim has launched a fresh attempt to overturn his conviction for sodomy.

Anwar is claiming that his conviction resulted from perjured evidence, as the main prosecution witness Mohd Saiful Bukhari Azlan was untruthful.

According to documents filed in the High Court in Kuala Lumpur today, Anwar claimed the government knew about Saiful's alleged perjured evidence...