The advent of social media sites has created an environment of greater connection among people, businesses, and organizations serving as a usefu tool to keep in touch and interact with one another. Social media sites have become useful tools for the public and law enforcement entities, but criminals are also using these sites for wrongful purposes. Law enforcment agencies should have a social media policy which communicates how information from social media sites can be utilized by law enforcement, as well as the differing levels of engagement -- such as apparent/overt, discrete, or covert -- with subjects when law enforcement personnel access social media sites. Contents of this report: Introduction; Social Media Policy Elements; Conclusion; Cases and Authorities; Social Media Policy of Gerogia Bureau of Investigation, Dunwoody Police Dept., and New York City Police Dept. Figures. This is a print on demand report.