"Disorder at day laborer sites is but one aspect of the larger set of problems related to both public disorder and to illegal immigration. The literature on day laborers provides a general picture of the market for them, the conditions of day-labor work, the laborers themselves, their employers, the places where they assemble, and the link between day laborers and human smuggling. This guide will help law enforcement understand the factors that contribute to their local problem in order to frame analysis questions, identify valid effectiveness measures, determine important intervention points, and select an appropriate set of responses for their specific problem."
Problem-Oriented Guides for Police, Problem-Specific Guides Series No. 44
Office of Community Oriented Policing Services: http://www.cops.usdoj.gov/