Discuss the benefit and cost of reallocating $1 worth of police activity to any one of the following (this is by no mean an exhaustive list): the court system, mental health services, child care services, drug prevention and/or rehabilitation services, higher education, etc., etc. Framed differently, think about the the value the last $1 allocated to the local police department will bring to the local residents and compare those benefits to those that could be obtained by the same residents if instead, that $1 was allocated to other social services. We are back again to opportunity cost and marginal analysis.