Queensland's corruption watchdog admits it has concerns about police discipline after reviewing the failure to prosecute officers involved in the 2012 bashing of a handcuffed man.

The officers escaped sanction despite the assault at a Gold Coast police station being captured on CCTV.

Sergeant Rick Flori faces criminal misconduct charges for allegedly leaking footage of a police bashing. Credit:Network Ten

However, another policeman, Sergeant Rick Flori, faces criminal misconduct charges for allegedly leaking the footage.

The Crime and Corruption Commission issued a lengthy public statement on Tuesday explaining its role in investigations arising from the incident amid fears of a cover-up.