The former head of Victoria Police’s ethical standards body won’t be charged by the state’s anti-corruption body over racist and offensive comments he made online.

Brett Guerin quit the force in February last year after being linked to racist YouTube comments and inappropriate remarks about former colleagues.

The Independent Broad-based Anti-corruption Commission spent nearly 18-months looking at whether Mr Guerin’s oversight of the Professional Standards Command affected its investigations involving racism and other discrimination allegations.

On Monday IBAC said it had “found no evidence of actual bias”.

“Regardless of this, this behaviour risked damaging the integrity of, and confidence in, Victoria Police investigations,” IBAC said in a statement.

“While his conduct was generally offensive, it does not meet the standard of ‘offensive’ currently required to file charges under the criminal code.”

Mr Guerin last year admitted to making “crude and coarse” comments about former police chief commissioner Christine Nixon and former police Victorian Police Association boss Paul Mullett.

The comments were made in 2016 under the name ‘Vernon Demerest’, a character from the 1970 film Airport.

They included references of a graphic nature relating to Ms Nixon and about Mr Mullett.

While IBAC won’t charge Mr Guerin, it is preparing a report about failures of leadership within the police force.

This is expected to be finished next year and Victoria Police has been contacted for comment.

Last week, Mr Guerin lost a defamation case against the director of Melbourne’s Inflation nightclub, Martha Tsamis.

She sued the state over 2014 comments the former officer made to the Herald Sun newspaper and radio station 3AW about drug trafficking, overdoses and underage drinking at the venue.

Victoria Police said it would not comment as the matter was handled by IBAC.

-AAP