Former MP Taito Phillip Field faces his first parole hearing on Wednesday.
Field was sentenced to six years in prison in 2009, after being found guilty of 11 charges of bribery and corruption and 15 of attempting to pervert the course of justice.
He had accepted labour from Thai people he helped with immigration matters and then tried to cover that up during an official inquiry.
An appeal against his conviction and sentence has been rejected by the Court of Appeal, but a Supreme Court decision is still to come.
The Parole Board has confirmed that Field's first hearing is being held, but a decision may not be immediately available.