Queensland MP David Gibson intends to quit politics.

Queensland MP David Gibson intends to quit politics. Photo: Harrison Saragossi

The man who revealed Gympie MP David Gibson's past has been referred to the parliamentary ethics committee.

Speaker Fiona Simpson said after receiving a complaint on April 23 from Premier Campbell Newman "about an alleged attempt to threaten or intimidate the Member for Gympie", she reviewed the matter and decided to refer it to the Ethics Committee.

"To attempt to influence a Member in their conduct as a member by bribes or threats on account of their conduct in the parliament or committee is clearly contempt," Ms Simpson said in explaining the charge.

"Similarly, conduct having a tendency to impair a member's independence in the future performance of their duty is also a contempt."

Scott Elms, a former friend and fellow Gympie LNP branch member, published material related to Mr Gibson's past that was protected under a statute of limitations set by the Rehabilitated Offenders Act, last month.

Mr Gibson, who had already stepped down as chair of the select ethics committee investigating whether acting Crime and Misconduct Chair Ken Levy misled the parliamentary oversight committee, announced last week he was taking three weeks' sick leave and would not contest the state election.