Social networks that enable crime are not mutually exclusive from the networks of law- abiding citizens. 1 The networks may supply an essential first condition for many serious criminal behaviors.
They can provide a source for illicit drug and pornography distribution and international terrorism. Social networks sometimes promote illegal behavior (e.g., juvenile delinquency and gang-related crime) among related offenders across criminal domains. SNA derives its value from human organization and social interaction for criminal and noncriminal purposes. This often leads to improved clearance rates for many crimes and development of better crime prevention strategies. It improves law enforcement effectiveness and efficiency by using complex information regarding individuals socially related to suspects. SNA provides a systematic approach for investigating large amounts of data on people and relationships. Manual examination of social networks tends to be difficult, time consuming, and arbitrary, making it more prone to error. Using available data, police departments structure the examination of an offender’s social network in ways not previously possible. While technologically sophisticated, SNA proves easy to employ. SNA, a social science methodology, serves as a valuable tool for law enforcement. Through quantitative metrics and robust visual displays, police can use SNA to discover, analyze, and visualize the social networks of criminal suspects. Social network analysis (SNA) is often confused with social networking sites, such as Facebook, when in fact, SNA is an analytical tool that can be used to map and measure social relations.
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