New South Wales Waratahs coach Bob Dwyer has called on SANZAR to look into the Super 12 rugby judiciary system following the controversial two-week suspension of a South African international.

Cats' Japie Mulder was outed for six weeks, four of them suspended, for shattering the cheekbone of the Stormers' Test centre De Wet Barry on the weekend.

Dwyer wants Australian administrators to approach South Africa, New Zealand and Australia (SANZAR) about the consistency of the system.

Currently a local judiciary views incidents in the country where the incident occurred. Mulder was outed for six weeks but the all-South African disciplinary committee suspended four, meaning he would only miss two weeks.

The Mulder tackle stirred a media storm with former national assistant coach Alan Solomons calling for an 18-month suspension on Springbok centre Mulder ahead of the South African Rugby Football Union disciplinary hearings.

"I'd prefer our administrators to ask the SANZAR administrators whether they find it satisfactory," Dwyer said Wednesday. "I'm only coaching one team and the people that are running the competition should be the one's looking at it.

"We can't presume to tell them (South Africans) that because their system is different than ours it's wrong, but it is worth looking at."

Centre Barry will miss six weeks including the Stormers' game against the Waratahs on Sunday at the Sydney Football Stadium. Dwyer, meanwhile, has been able to retain the same starting side which beat the Chiefs in its opening game last weekend.

Dwyer retained faith in his young line-up after its 42-23 win over the Chiefs, resisting the urge to bring former Wallaby second rower Tom Bowman into the squad. (AAP)