"Financial crimes against the elderly fall under two general categories: fraud committed by strangers, and financial exploitation by relatives and caregivers. This guide addresses the problem of financial crimes against the elderly and helps law enforcement analyze their local problem. It reviews responses to the problem and describes the conditions in which they are most effective."
Problem-Oriented Guides for Police, Problem-Specific Guides Series No. 20
Office of Community Oriented Policing Services: http://www.cops.usdoj.gov/