UPDATED 10.04AM: The Green Party believes the outcome of the Roastbusters case might have been different if changes, considered by a justice system review, had been implemented.

The government's restarting the Law Commission's work on alternative pre-trial and court processes, shelved by Judith Collins in 2012

Green MP Jan Logie says some of the review's proposals would have made a difference to the Roastbusters complainants.

"When they went to the police they would have been put in contact with specialist independent advisor who would be supporting them through the process," she said.

"There's no way the police would have lost track of communicating with them."

The Law Commission's work on alternative processes began in 2009, but the work was put on ice by Judith Collins in 2012.

Her successor, Amy Adams, says Ms Collins was concerned about some of the more "extreme" proposals in the Law Commission's work.

"There's no doubt that the Roast Busters case particularly made it quite topical again, but this has been something I've been thinking about a while before that came in," she says. 

"I'm ruling out from the scope of their work anything which would the burden of proof on proving innocence on the defendant," she says.

"But I still think with that excluded there is still quite a number of issues the Law Commission would be looking at which could very well sit in this area."

Amy Adams says the review was already well under-way and she expects it to report back next year.