This Toolkit provides practical tools and resources to assist law enforcement agencies in building or enhancing effective operational responses to children exposed to violence (with or without a mental health partner). This toolkit contains tools targeted to police leaders and frontline officers. Several tools were first developed for the Protecting and Serving: Enhancing Law Enforcement Response to Children Exposed to Violence training curriculum for frontline police officers, developed and launched by the IACP, Yale and OJJDP.