Deputy Police Commissioner Mike Bush has been challenged by Labour MP Trevor Mallard over his comments at the funeral of former Detective Inspector Bruce Hutton.
In a heated select committee this morning, Mr Mallard appeared to suggest Mr Bush should be sacked for his controversial eulogy.
Mr Bush told mourners that Mr Hutton - who was found to have planted evidence in a murder inquiry - had "integrity beyond reproach".
Mr Mallard asked Police Commissioner Peter Marshall whether it was his decision to allow Mr Bush to speak at the funeral.
Mr Marshall said he "absolutely" supported Mr Bush's attendance at the funeral. He also defended the eulogy.