In July 2010 the Timor-Leste Government promulgated the Law Against Domestic Violence. This is part of a constitutional promise to improve women and child security. Inherent in this development is the shift from traditional dispute resolution system to a state criminal justice system. This shift identifies domestic violence as a public crime and relies on greater participation from the stakeholders of domestic violence, i.e., the police, prosecution, legal services, health care services, social care services and community leaders. This paper examines the legal framework of the new domestic violence law and the impact on the stakeholders in delivering the legal obligation to promote women and child security in Timor-Leste. Inherent in this discussion is the question of whether the new law can reform the traditional justice system, change community behaviour and meet the competing challenges of cultural relativism in each district of Timor-Leste.