The chairman of an Upper House inquiry into Tasmania's forest peace deal has not ruled out calling Resources Minister Bryan Green to give evidence.
Public hearings start in Hobart this morning.
The Deputy Premier is not among the list of almost 40 people expected to front the inquiry over the next three days.
"He has a major role to play of course," he said.
Mr Harriss says scrutiny of the peace deal will be extensive.
"Whether there has been interference unnecessarily and improperly by governments."
The Shadow Treasurer Peter Gutwein welcomes the inquiry.
"This committee now gets the opportunity to shed the disinfectant of sunlight on this deal."
The committee expects to hold about five weeks of public hearings.
"It's not normal behaviour or protocol for members of the Lower House to attend committee meetings of an Upper House," she said.
"They are their own house, they operate on their own basis.
"But we have not made any final decisions around that matter."