Four of Fiji's major political parties are calling on the regime to stop the intimidation and harassment of the Constitutional Commission.
The interim government has made amendments to the decree on the constitutional process, which do away with public discussion of the draft constitution.
Instead it will go straight to a yet to be formed regime-appointed Constituent Assembly for debate.
The group, which includes the former ruling party, the SDL, the labor party, and the United People's Party, says the Commission must be allowed the independence necessary for its task to be completed with integrity.
It says the final test of the draft constitution will be its acceptance by the people.