The Australian Federal Police (AFP) has suspended an investigation into an East Timorese man accused of war crimes because he has left the country.
Gui Campos, who is accused of involvement in war crimes during the occupation of East Timor by Indonesia, flew out of Australia yesterday.
An AFP investigation was launched after he arrived in Australia last year.
Some members of Government have expressed outrage that Mr Campos was allowed to leave, and say Australia faces international embarrassment because of it.
Independent Member for Lyne, Rob Oakeshott, says the Government should have done more to keep Mr Campos here.
"It is potentially a very embarrassing case for the Australian Government," he said.
The Government and the police say they had no power to keep him in Australia, but Greens leader Bob Brown says the case raises serious questions.
"The Geneva Convention requires that where there are such alleged crimes, the country that is hosting the person makes sure they are investigated and charges are duly brought," he said.
"These aren't 60- or 70-year-old crimes, they are within the last decade or two," he said.