"Law enforcement officers encounter people with mental illness in many different types of situations, in roles that include criminal offenders, disorderly persons, missing persons, complainants, victims and persons in need of care. This guide is an essential tool for local law enforcement to analyze their local problem associated with people with mental illness and reviews responses to these problems based on evaluative research and police practice."
Problem-Oriented Guides for Police, Problem-Specific Guides Series No. 40
Office of Community Oriented Policing Services: http://www.cops.usdoj.gov/