An audit and corruption probe of the Housing Development Corporation are underway.
The presidential poll was not expected to be fair with Ahmed Shareef as chief Elections Commissioner.
A commissioner has left the country after threats, EC chief Ahmed Shareef said.
The prisons authority granted furlough at the request of the human rights watchdog.
The eight ex-policemen were arrested during February's state of emergency.
The tycoon returned after more than a year in exile.
The ruling party has demanded an investigation into alleged graft by the Elections Commission chief.
The exiled opposition leader ruled out a deal with "the now defunct Maldives Supreme Court."
The apex court order maintains the pro-government parliament majority.
The EC reversed its decision to strip 12 former ruling party lawmakers of their seats.
EC secretary-general was threatened by three masked men.