In collaboration with national partners in policing, behavioral health, emergency medicine, and advocacy, Vera developed a literature review that summarizes a variety of police-based and related emergency response models that have received some research attention, as well as the methodological approaches used to evaluate them and their results. Each of the approaches Vera reviewed has promise for meeting the goals of improved crisis response, but the extent and type of research about each approach varies, and key gaps in knowledge remain. The literature review underscores the need for more research on community-based responses that can guide jurisdictions across the country as they seek out strategies to shrink the role of police in crisis response. Read the full report.