Brisbane have told representative centre Justin Hodges to pull his head in, with another on-field indiscretion having the potential to end his season.

While the Broncos remained miffed by the NRL judiciary's decision to suspend Hodges for two matches for his "up yours" gesture at top referee Tony Archer, they have told the Queensland and Australian star he's "skating on very thin ice".

"Justin is under the microscope," said CEO Bruno Cullen before the team flew to New Zealand for Saturday's clash with the New Zealand Warriors.

"Each charge carries forward to the next charge.

"He's got about 50 carry-over points so he's halfway through another week.

"He's got three guilties against his name so if he commits the same offence it's 50 points, plus 50 per cent, plus 50 per cent, plus 50 per cent for each of the three charges he's already had.

"If it's not a similar offence he still gets 20 per cent loading from each charge.

"If he clips someone on the ear and gets the lowest grade of 70 points, all that loading for a minor thing he could still get three or four weeks.

"He's right under the gun and he's got to understand that.

"You don't want him to put his hands in his pockets, that would make him useless, but he has to be extremely careful because he is treading thin ice."

Cullen revealed the Broncos' legal representative Jim Hall had written to the NRL's Greg McCallum asking the contrary conduct charge to be removed so it could be referred straight to the judiciary.

"It goes straight to the panel, they decide the guilt and the penalty," said Cullen.

"We got the impression last night the judiciary were going to find Justin guilty but felt the penalty was too harsh but were unable to get around it.

"We've written a letter to the league today asking for clarification on a number of points."

Cullen said Brisbane want to know the difference between what Hodges did and what Cronulla captain Paul Gallen did recently when he grabbed a referee by the jersey and pulled him in a game against the Broncos.

"That's assault. When I was playing, that was life," said Cullen.

"I know it's not life now.

"We've got conclusive video of that and also of Michael Crocker giving a vicious verbal spray to a referee and using foul language.

"We just want to know where that sits with what Justin did and they weren't charged and he was and why?"

Cullen also questioned why it was stated at Wednesday night's judiciary that no match official saw what happened when they (Brisbane) had video of the linesman taking a few steps onto the field and imitating the same act.

"Obviously he saw it, and if he didn't maybe he should be charged for doing something to Tony Archer ... I don't know," he said.

"We want to know why they said that last night when we have proof he saw it."

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