AVRES : analysis and visualisation of criminal networks
Transcript of AVRES : analysis and visualisation of criminal networks
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AVRES : analysis and visualisation of criminal networks
Cécile Plessard, researcher in Sociology Bénédicte Lavaud-Legendre, researcher in Law
COMPTRASEC UMR 5114 – CNRS Université de Bordeaux
19th ALLIANCE AGAINST TRAFFICKING IN PERSONS
Using Technology to Combat Trafficking in Human Beings: Turning a Liability into an Asset Vienna, Hofburg (Neuer Saal) 8-9 April 2019
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How does human trafficking work? • Academic perspectives: Improve knowledge around
criminal networks related to human trafficking / sexual exploitation
What is the social organization of the group? (rules and norms)
• Operational perspectives: Assist with the judicial decision
Which are the individuals whose removal from the network would produce the greatest fragmentation of the group (or those whose role within the criminal activity needs to be rethought) .
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Research projects • AVRES : analysis and visualisation of criminal network :
the case study of a Nigerian court file (314 actors) – Quantitative approach : formalisation of the network of the
actors from the court file – Qualitative approach : content analysis of the phone intercepts
• MINEXP : sexual exploitation of underage women in the suburbs of Paris
• TRAFOR : forced labour from court file data
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In order to understand how human trafficking works:
1. Rôle/Role Who does what? The role of the actors
2. Identité/ Identity Who are they? The social characteristics, individual context, trajectory and motivation
3. Voisinage relationnel/ Relations With whom? The relational neighbourhood
4. Environnement/Environment In which context? The social, cultural, familial and geopolitical contexts of the actors, groups and criminal activities
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The methodology : R.I.V.E.
Quantitative and qualitative approaches/ based on court files
Qualitative approach/ based on interviews, observations and literature
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What the tool allows ? Collect
• Collect all the data in the same place: – Individual caracteristics – Tasks/criminal roles – Links between the actors – Nature of the links (kindship, romantic and sexual
relationship, roomates and host, financial flows, criminal activity and acquaintance)
– Action based links 19th ALLIANCE AGAINST TRAFFICKING IN
PERSONS 8-9 April 2019 Vienna
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1. Rôle/Role Who does what? The role of the actors
2. Identité/ Identity Who are they? The social characteristics, individual context, trajectory and motivation
3. Voisinage relationnel/ Relations With whom? The relational neighbourhood
4. Environnement/Environment In which context? The social, cultural, familial and geopolitical contexts of the actors, groups and criminal activities
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What the tool allows ? Analysis
Statistical tests: multi-factorial analysis
Network analysis
+
Advanced network analysis technique / QAP + ERGUM
Descriptive analysis + CSV export
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What the tool allows ? Visualization
Network approaches: 1-mode network : actors
• Full network (minimum unit : triade) • Personal network
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Full network (314 actors)
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Ego network
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What the tool allows ? Visualization
2-mode network : actors + non-actors – Affiliation : events (oath for nigerian THB)
places of prostitution (hotel, street, …), social groups (mafia, clubs, …)
– Role/Action based 2-mode network : proxenete, prostitute / recruit in the country of origin, Monitor
1-mode + 2- mode network
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2-mode /Affiliation network: places of prostitution
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What the tool allows ? Visualization
• Multiplexity of the links : different ties with the same person – Types : financial, criminal activity, accomodation,
blood and sexual, acquaintaince – The links are not mutualy exclusive, except
acquaintaince Shows the complexity of the networks Shows the difficulty for victims to exit
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Multiplexity of the links (simultaneous view)
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Full/all links
Criminal actions
Financial links
Kindship
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Infinite queries based on attributs of the actor and links
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Within criminal actions: to prostitute for
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Biais and limits of the tool
– Investigation purpose and not scientific purpose /heter
– The purpose of policemen is to arrest the perpetrators, not to describe the network
– Unreliable datas (wrong identity / false papers / variety of aliases for the same person …)
– Cultural elements (blood ties / family links) – This is not a criminal network: the boundaries are
the court file : agregation of personal networks – Time-consuming
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PERSONS 15
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The practical impact of the tool
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• Prosecution support : – Structure and the strength of groups / organized crime – Understanding of the role (s) of individuals in the
criminal organization
• AVREP: Storage and Investigation Tools – Link information about individuals from one file to
another – Identify individuals who have an important structural
position without being prosecuted
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Merci de votre écoute !
https://traite.hypotheses.org @Réseaux_traite
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