Australia is not a country you'd expect to be investigated for crimes against humanity, but that's exactly what a group of human rights lawyers is asking the International Criminal Court to do.

The alleged human rights abuses took place far from Australia, in two offshore immigration detention centers in the South Pacific.

"Both of these are extremely remote Pacific islands," says Rebecca Hamilton, an Australian human rights lawyer who teaches at American University's Washington College of Law.

She's not kidding. One camp is on the tiny 10-square-mile island nation of Nauru. It's in the middle of Pacific about 25 miles south of the equator. There's nothing near it.

The other camp is on Manus Island, part of Papua New Guinea but several hundred miles off its coast in the Admiralty Islands.

Hamilton says Australia outsourced the detentions camps with one thing in mind: "They have been set up by the Australian government with the specific purpose of not letting any asylum-seekers onto the Australian mainland."

The offshore location of the detention camps also allowsAustralia to skirt its obligations as a signatory to theUnited Nations Refugee Convention.

Since 2001, the "Pacific Solution," as it's known, has been used on and off by Australian governments to intercept asylum-seekers at sea and transport them to the detention centers on Nauru and Manus Island.Hamilton says it's not a right or left issue. Australian governments across the political spectrum have used the detention camps.

"The rationale has been that making the boat journey to Australia is very dangerous and [the government]doesn't want people trying to make that journey," Hamilton explains."But the situations that these people are fleeing are incredibly dangerous as well and if they are making the calculationsthat it is worth them to try to at least seek asylum in Australia, then the Australian government has no right to say that they can't pursue that option."

The asylum-seekers on Nauru and Manus Island number around 1,250. Many have been there for nearly four years. The camp on Manus Island houses single men only. Nauru has women, families and children.

The 108-page brief submitted to the ICC on March 6 describesthe "harrowing practices of the Australian state and corporations towards asylum-seekers,"including long-term detention in inhumane conditions, physical and sexual abuse of adults and children and "epidemic levels" of self-harm among those held on the islands.

Hamilton says even though the camps are outside Australia and operated by people who are not Australian citizens, if the ICC decides to investigate and finds something, it's the Australian government who is still in the hot seat.

"Australian government officials, to the extent that they are aware of what is happening and are continuing to authorize it, they're absolutely on the hook," she says.

Hamilton says the evidence presented in the report to the ICC was gathered through interviews with former officials who have worked at the detention camps. "The Australian government has outsourced the running of these islands to private contractors. And as some of those people have resigned and left those positions, they have spoken out about the conditions that they've seen on the island."

The lawyers also drewon atrove of documentsleaked to The Guardian newspaperin August 2016. It comprised more than 2,000 incident reportsfrom inside the detention camp in Nauru that describedassaults, sexual abuse, self-harm attempts and child abuse. More than half of the incidents involved children.

It's not yet clear if the ICC will investigate the controversial camps. The court must first decide if it wants to do a preliminary examination. Hamilton says the standard for that is: "Is there a 'reasonable basis'for thinking that these allegations that are being made could be true?If there is and if the particular situation meets different legal standards for the court, then the court is able to start a preliminary examination."

Hamilton is hoping that the submission to the ICCwill help pressure the Australian government to shut down the camps and allow the asylum-seekers to resettle somewhere safe.

"There's a very strong constituency in Australia that is opposed to what the Australian government is doing here," she says."They're a minority but they have been on this issue for years and years and years and there are Australian human rights lawyers who have been pushing the Australian government to try to address this issue. But it hasn't yet hit a tipping point domestically."

She hopes that the submission to the ICC will get it there.

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