This workshop introduces an ambitious initiative to strengthen the capacity of public prosecutors and attorneys general to respond to poor compliance with environmental laws related to the illegal trade in flora, fauna and hazardous substances that compromise ecosystems and undermine nature´s resilience. The Global Network of Environmental Prosecutors (GNEP) is a collaborative leadership effort that links prosecutors globally to share information and best practices and builds capacity to carry out their work effectively. As the nations of the world collaborate to develop laws and treaties for protecting the environment, enhanced international cooperation in ensuring compliance and enforcement of these rules at the national level is critical to their success, particularly in developing countries. Even the best designed environmental laws that are not complied with are merely words on paper; if they fail to deter further non-compliance, nor do they effectuate the rule of law and good governance necessary to assure a sustainable natural environment. Today´s environmental threats are increasingly international, presenting challenges, such as cross-border traffic in endangered species, illegally harvested timber, and hazardous electronic waste. Often these are compounded by lack of political will and vulnerability to corruption. Often prosecutors face adversaries that are highly motivated and increasingly sophisticated in evading detection and prosecution. Even where specific harms occur wholly within a national border, many countries lack prosecutors with the training necessary for enforcing environmental laws that are highly technical and complex. This workshop explores best practices and pragmatic solutions for linking and building capacity for environmental prosecutors, included case studies. The workshop engages participants in collaborative problem solving and capacity building exercises, utilizing information shared by their peers.