The Independent Commission Against Corruption (ICAC) on Tuesday charged a prisoner for allegedly offering a HK$500,000 bribe to a public prosecutor at the Department of Justice.

Ko Wai-kin allegedly wanted the prosecutor to interfere with the trial of another criminal case that Ko was facing.

The ICAC alleges that in late February 2023, 40-year-old Ko - who was then serving a jail term in Stanley Prison - asked to send registered mail containing a photocopy of a handwritten letter to the then Acting Senior Public Prosecutor.

The allegation is that Ko wanted the prosecutor to interfere in a case, where Ko faced deception charges, to make it appear Ko was was solely responsible for the offences.

The prosecutor reported the letter to management, who in turn contacted the ICAC.

The government said inquiries show the prosecutor was not involved in the prosecution of the case

Ko will will appear before Eastern Magistrates' Courts on Wednesday on one count of offering an advantage to a public servant.