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CHAPTER 15
Social media and its role for LEAs: Review and applications
intelligence that is traditionally under-valued in the minds and practices of police
officers as a result of culturally ingrained bias that are deeply embedded within the
culture and organizational mechanisms of modern policing (
Reiner, 2010
). Deep-
rooted resistances such as these require any new approaches to be underpinned by
knowledge management-enabled
organizational mechanisms, facilitating the inte-
gration of any new intelligence-led approaches to combatting organized crime threats
such as Human Trafficking. In response to this requirement, social media is but one
of the resources which can be leveraged in response to the ever diversifying threat
of human trafficking through the use of text mining enabled information extraction,
categorization and analysis. Although agents of trafficking themselves are unlikely
to be detailing the nature of their activities in the text and
images they post to social
media, observers of the environment (i.e., the general public) are potentially quite
likely to make posts in reference to behavior that is suspicious or out of the ordinary.
In a recent case of Human Trafficking in south-east England, a Hungarian traffick-
ing gang were convicted for transporting more than 50 teenage girls into the UK for
the purposes of running an illegal prostitution ring. Incidents such as this provide a po-
tential use case to illustrate the application of social media analytics and information
extraction in combatting the threat of Human Trafficking. During the case identified, a
number of trafficking victims were smuggled into halls of
residence at the University
of Sussex for prostitution purposes (
Campbell, 2014
). In events such as this, it is likely
that other residents at the halls, and local university students would have made inquisi-
tive posts to social media sites such as Twitter and Facebook in regards to the unusual
nature of having a number of eastern European women suddenly appearing at the
premises, and rarely being seen or heard from. Although the posts of observers may
not have been inferring that the individuals were in fact
victims of human trafficking,
and operating within a forced prostitution ring, analytical techniques such as natural
language processing (NLP) and named entity extraction, enabled through web crawl-
ing technologies, can be used in conjunction with a knowledgebase containing the
specialist domain knowledge of Human Trafficking experts that could extract textual
information from social media indicating multiple reports
of unusual behavior being
present from the same location that would then be categorized to indicate that it may
in fact be related to potential illicit activity, such as Human Trafficking.
By filtering and fusing information sources, law enforcement analysts can begin
to accumulate enough information to form a representation of the environment being
observed, through the aggregation of information based upon the geo-tagged loca-
tion data that is embedded within social media content. The repository aspect of any
proposed system would be populated with domain knowledge
consisting of likely
indicators of Human Trafficking activity, both in terms of the victims, the properties
being used by those involved and the characteristics of the perpetrators themselves,
all tied to linguistic rules designed to pick out slang terms, and posts from social
media which would reference activity that coincides with that stored in the knowl-
edgebase.
In the past, the police and LEAs would be reliant on the direct reporting
of suspicious activity from observers, however in the new environment emergent as
a result of the information age, this same information is dispersed within the social