Amal Clooney
Lawyer Amal Clooney speaks during a news conference in central London, Oct. 5, 2015. REUTERS/Peter Nicholls

International human rights lawyer, Amal Clooney has renewed her attack on the Islamic State group and its genocide of Yazidi people in Iraq during an interview before she appears at the United Nations to call on the world community to take action against the terrorist organization, later this week.

“I’ve been to refuges in Germany like the one you showed in your piece and I have interviewed former child soldiers and young girls who were raped and enslaved by ISIS,” Clooney told BBC in an interview Tuesday. “It’s been the most harrowing testimony I’ve ever heard. We know that it’s genocide. The UN has said so.”

Genocide is defined as “the deliberate and systematic destruction of a racial, political, or cultural group,” and Clooney told BBC’s Fiona Bruce that “we are allowing it to happen without actually calling ISIS to account.”

The first step is to hold the terrorist group accountable, according to the lawyer, is to collect evidence from ground to make a solid case against ISIS. The damning evidence, if not collected in time, disappears very fast, she explained.

An example provided by Clooney was that of mass graves uncovered in Mosul, Iraq. She said: “There are mass graves that are being discovered; just a few days ago in Mosul a huge mass grave that’s thought to have 4,000 bodies in it was discovered and there’s other types of evidence as well.”

Clooney, who is married to actor George Clooney and is expecting twins, represents a number of victims of the Yazidi genocide, including ISIS rape survivor, Nadia Murad who was nominated for the Nobel Peace Prize last year. Murad won a number of human rights awards and was also named the United Nations good-will ambassador.

On being asked whether her high-profile marriage had any effect on her cases, Clooney refused to steer away from the cause she speaks for.

“There’s lots of my work that takes place behind closed doors that is not ever seen,” the British-Lebanese barrister said. “I think if there are more people who now understand what’s happening about the Yazidis and ISIS, and if there can be some action that results from that, that can help those clients, then I think that it’s a really good thing to give that case the extra publicity that it may get.”

Clooney is scheduled to address the UN later in the week, an opportunity she said she will use to ask the international community why action has not been taken against ISIS and its atrocities.