This document discusses different frameworks for defining and measuring human trafficking. It begins by outlining definitions from international agreements like the Palermo Protocol and concepts from organizations like the ILO. It then examines how human trafficking has historically been framed, including a refocus on human rights and different forms of exploitation. The document also discusses methods for estimating the scale of human trafficking, like using data from multiple identification lists. It analyzes monitoring of anti-trafficking policies through organizations like GRETA and presents scoring systems for evaluating country performance on legal measures, victim assistance, and law enforcement. Finally, it concludes that increasing specialized prosecutors is key to improving conviction rates for human trafficking cases.