Australian police were ready to arrest members of a group of 13 people linked to Isis fighters who were returning home from Syria , the home affairs minister announced on Wednesday. Some of the individuals had committed crimes and would face the law, Tony Burke claimed. They are returning from Al Roj, a detention camp in northeast Syria . Australia’s government got an alert on Wednesday morning when the group’s travel booking from Damascus to Melbourne and Sydney was made. Police said they had evidence that the Australians had committed crimes under national law, including travelling to a prohibited area and engaging in slave trade. Australian police have been investigating citizens who travelled to Islamic State’s so-called caliphate in Syria since 2015. The returning group, including four women and nine children, had travelled to Syria “in support of one of the most horrific terrorist organisations in recent history or in our lifetimes”, Mr Burke said.…