Ex-lawyer demands probe of his wrongful persecution under rule of China's fallen politician Bo

An ex-lawyer who said he was wrongfully persecuted as part of a massive crime crackdown by China's purged politician Bo Xilai has filed a complaint with China's highest prosecuting office.

The former lawyer, Li Zhuang, is demanding a thorough investigation of his case.

China's top government prosecuting office said on its website Saturday that it has received Li's petition and will handle the case according to procedure.

Li was detained in 2009 after his client Gong Gangmo, a Chongqing businessman suspected of gang crimes, alleged the defense lawyer had instigated him to lie.

Li, who spent 18 months in jail, says Gong framed him under duress of Chongqing police.

The case has raised questions about how Bo ruled Chongqing as its party chief until his downfall in March.