Towards a Complex-Systems Understanding for Combating Human TraffickingMarcel will be speaker the the 2014 Together Let's Stop Traffick conference and is a lecturer in the Department of Police Practice (University of South Africa). He is passionate about social justice and serves as Case Manager for the National Freedom Network. Marcel previously worked as a hostage negotiator and Hawks investigator in South Africa, where he was responsible for the investigation of human traffick-ing and organised crime.