In August 2018, Sally Hayden received a Facebook message. 'Hi sister Sally, we need your help,' it read.'We are under bad condition in Libya prison. If you have time, I will tell you all the story.' More messages followed from more refugees. They told stories of enslavement and trafficking, torture and murder, tuberculosis and sexual abuse.And they revealed something else: that they were all incarcerated as a direct result of European policy.