The NRL has issued a $10,000 fine to the North Queensland Cowboys for questioning the integrity of the Match Review Committee and Judiciary.

Head of Football, Todd Greenberg said the NRL would not stand by and allow the credibility of the committee to be attacked.

Cowboys coach, Paul Green told a media conference that he and the club had no faith in the consistency of the judiciary process.

The Cowboys’ official Twitter account said: “Paul Green says the club has no faith in the match review and judiciary process and that was a reason why we didn't push on with Tariq (Sims).”

Mr Greenberg said there is a system in place for clubs to challenge charges laid against players.

“The members of the Match Review Committee and Judiciary have hundreds of games experience and they do not deserve to have their integrity and credibility questioned,” he said.

“If the club wanted to dispute the charge against Tariq Sims they could have gone through an independent process and put their case.

“Instead, they have elected to attack the credibility of the Match Review Committee and that cannot be tolerated.”