"Stalking creates uncertainty, instills fear and can completely disrupt lives. This guide reviews the problem of stalking and the factors that contribute to it. It identifies a series of questions to help law enforcement analyze their local problem. Finally, it reviews responses to the problem of stalking and what is known about them from evaluative research and police practice."
Problem-Oriented Guides for Police, Problem-Specific Guides Series No. 22
Office of Community Oriented Policing Services: http://www.cops.usdoj.gov/