The chairman of the People Against Switching Sides committee in Samoa, Toleafoa Solomona, is quietly confident that legal action taken last year will be successful.
The group wanted to stop the road switch but parliament passed a bill to change to driving on the left despite large protest marches in the capital, Apia, last week.
Toleafoa says the issue of unreasonableness is probably the strongest issue within their legal claim.
"Public sector has put forward so many views in opposition including the engineers report the Chamber of Commerce, they've completely ignored those, so we have a very strong feeling even on that ground alone of unreasonableness I'm sure will go a long way."
Toleafoa says their case will be coming up for mention on the 28th of this month and then the hearing of the strike out motion by the Attorney General could follow within a month.