Monis applied for political asylum to obtain refugee status in Australia, Gen Moghaddam said, describing the incident as “a play”.
Meanwhile the Australian government has announced it is investigating why Monis was released on bail on separate charges.
He had a history of religiously inspired activism, but officials say there is as yet no evidence his actions were linked to international Islamist movements.
In 2009 he was convicted of sending offensive letters to the families of fallen Australian soldiers.
In 2013, he was charged with being an accessory to the murder of his ex-wife, and given bail.
He also faced more than 40 sexual and indecent assault charges.