No charges will be laid against a Queensland police officer over the death in custody of Mulrunji Doomadgee on Palm Island in 2004.
The state's anti-corruption agency found there was insufficient evidence to pursue allegations of assault, lying and collusion.
Mulrunji Doomadgee died of massive internal injuries in a cell of the Palm Island police station.
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After two autopsies, three coroner's inquests and a manslaughter trial, Senior Sergeant Chris Hurley will not be charged again.
Allegations that Sgt Hurley punched Mulrunji three times, lied about what happened in the watchhouse and that he and two other officers colluded on evidence were under investigation.
Fears of a cover-up sparked a riot on Palm Island in 2004, a month after Mulrunji's death.
