The significant co-occurrence between men's violence against female partners and child abuse and neglect is well documented. It is less clear how child safety should be managed in family violence research with their mothers. This issue is salient to isafe, a New Zealand-based Internet intervention study testing improvement in safety decisions and mental health outcomes for women experiencing intimate partner violence. This article discusses the legislative, professional, and ethical considerations that contribute to the development of the child safety protocols and discusses the development of the isafe protocol. Hypothetical scenarios of the application of the isafe protocol are used to illuminate the issues and provide a basis for future discussion.