SANZAR referees' boss Lyndon Bray has said that the error that initiated a Crusaders try against the Hurricanes in their 26-26 draw on Friday will be discussed at an official level.

An SANZAR review of officiating incidents in the match will be held on Tuesday and it appears assistant referee Garratt Williamson will be the man in the spotlight.

The Dominion Post reports that Bray on Sunday reiterated his support for referee Jonathan Kaplan's TMO-assisted decision to award hooker Ti'i Paulo a last-minute try.

But Bray said that the quick throw-in that initiated the movement leading to the Crusaders second try, scored by left wing Zac Guildford, was incorrect.

"The lineout from a decision point of view that was clearly wrong," Bray said.

"Unfortunately, with the ball over the touchline, the main responsibility with what happens to that ball rests with the assistant referee.

"As a referee you can't reasonably be expected to pick that up when you are still dealing with things out on the field.

"It's generally accepted that the assistant referee's role once it's out, is to know what happens to it. In that sense Garratt's got to cop that on the chin and we'll discuss that with him.

"In terms of what action we might decide to take, that won't happen until Tuesday, which is our normal debrief where we decide what we will do about it."

Williamson allowed Crusaders halfback Andy Ellis to take a quick throw-in despite the ball being touched by Hurricanes players and replacements.

Williamson has already been involved in controversy this season, with Blues head coach Pat Lam criticising his officiating after the Blues controversial defeat to the Waratahs in Sydney on March 27.

But the Dominion Post reports that Bray said that overall he remained pleased with his team of referees this season and the TMO process despite some controversies.

Though he agreed the Hurricanes had not been lucky in recent weeks, Bray said referees' calls worked both ways, citing Jeremy Thrush's first-half try as an example.

"My gut feeling is there was obstruction. Jonathan's made it clear what he thinks and that is that the Crusaders player ran into the Hurricanes player and could have avoided it. We'll review that too.

"It's swings and roundabouts. It's like anything in sport though, the closer you are to the line the more at risk you are to decisions that go against you costing you potential points or games and that's just reality."