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Artikel

Terroristische netwerken en intelligence: een sociale netwerkanalyse van de Hofstadgroep

Tijdschrift Tijdschrift voor Veiligheid, Aflevering 2 2009
Trefwoorden sociale netwerkanalyse, terrorisme, Hofstadgroep
Auteurs Dr. Renée C. van der Hulst
SamenvattingAuteursinformatie

    Radicalization and terrorism remain areas of special interest in terms of security policies. It’s common knowledge that most of the activities related to radicalization and terrorism heavily rely on the involvement of multiple actors. Therefore, an increased understanding of the underlying social structures is considered to offer important leads for the development of effective countermeasures (in particular when related to demographic, cultural, psychological and other social factors). Yet, the number of empirical network studies in this domain (at least those openly available) that incorporate arithmetic tools known as Social Network Analysis (SNA) remain extremely scarce. In this paper the author presents an exploratory Social Network Analysis of the Hofstad network based on publicly available data. Members of the Hofstad network, a radical Islamist network in the Netherlands, were active recruiters for the violent jihad, spreaded radical propaganda, some attended training camps in Pakistan, and the network was suspected of planning several terrorist attacks on strategic objects and prominent people in the Netherlands. One of the members, Mohammed B., was sentenced to life in prison for murdering the Dutch filmmaker Theo van Gogh in November 2004. Although the Hofstad network was considered by trial as a terrorist organization in the first instance in 2006, the judgment was reversed on appeal in 2008 when most members were acquitted. As is characteristic of home-grown networks, our analysis indicated that the Hofstad network (N=67) was relatively sparse and decentralized and evolved around a more cohesive core of key players (N=13). The key players were identified based on their central network position and a hierarchical clique analysis. Mohammed B., who had been considered a marginal player by the secret service, turns out to be the most central actor of the network. Although the analysis clearly suggests that quantifying network structures provides actionable intelligence, more research is needed to validate the results.


Dr. Renée C. van der Hulst
Dr. Renée C. van der Hulst was tot voor kort als onderzoeker verbonden aan het Wetenschappelijk Onderzoek- en Documentatiecentrum (WODC) van het ministerie van Justitie. Zij is thans werkzaam voor Bureau Netwerkanalyse dat onderzoek-, advies- en onderwijswerkzaamheden verzorgt (onder andere op het gebied van sociale netwerkanalyse) binnen het domein van nationale veiligheid en criminaliteitsbestrijding. Contactadres: Bureau Netwerkanalyse, Postbus 938, 1200 AX Hilversum. E-mail: vanderhulst@online.nl.
Artikel

De Collectieve Winkelontzegging

Tijdschrift Tijdschrift voor Veiligheid, Aflevering 2 2009
Trefwoorden winkelontzegging, overlast, (on)veiligheid, voorzorgsprincipe
Auteurs Loes Wesselink, Marc Schuilenburg en Patrick Van Calster
SamenvattingAuteursinformatie

    Public Private Partnerships (PPS) are becoming one of the most popular answers to problems of crime and disorder. In this contribution, the authors research the Collective Shop Ban, maybe the most successful form of Public Private Partnerships currently operating in the Netherlands. A Collective Shop Ban is a civil measure bestowed upon a person by the shop owner, when s/he displays ‘unwanted behaviour’. As a consequence entry can be denied for every shop assembled in the association of entrepreneurs. In 2007 almost 900 people have been denied access to over 450 shops in the city centre of The Hague. This new form of collaboration between police, public prosecution service and entrepreneurs has already been rewarded with the Regional Crime Control Platform ‘safety award’. However, the authors question the effects of this collaboration. They argue that the Collective Shop Ban creates its own public of ‘unwanted shoppers’, that can be banned from a shopping area by devising new terms of exclusion. This ‘public’ is subjected to new means of power, to be applied by private security guards and shop owners. While entrepreneurs celebrate the possibilities of this civil measure, the authors warn for the juridical and ethical consequences of this measure.


Loes Wesselink
Loes Wesselink is criminologe en werkt als junior onderzoeker bij het COT Instituut voor Veiligheids- en Crisismanagement in Den Haag. E-mail: wesselink.loes@gmail.com.

Marc Schuilenburg
Marc Schuilenburg doceert aan de vakgroep Criminologie van de Vrije Universiteit te Amsterdam. E-mail: m.b.schuilenburg@rechten.vu.nl.

Patrick Van Calster
Patrick Van Calster is universitair hoofddocent aan het departement strafrecht en criminologie van de Universiteit Leiden. E-mail: p.j.v..van.calster@law.leidenuniv.nl.
Artikel

De Collectieve Winkelontzegging

Tijdschrift Tijdschrift voor Veiligheid, Aflevering 1 2009
Trefwoorden winkelontzegging, overlast, (on)veiligheid, voorzorgsprincipe
Auteurs Loes Wesselink, Marc Schuilenburg en Patrick Van Calster
SamenvattingAuteursinformatie

    Public Private Partnerships (PPS) are becoming one of the most popular answers to problems of crime and disorder. In this contribution, the authors research the Collective Shop Ban, maybe the most successful form of Public Private Partnerships currently operating in the Netherlands. A Collective Shop Ban is a civil measure bestowed upon a person by the shop owner, when s/he displays ‘unwanted behaviour’. As a consequence entry can be denied for every shop assembled in the association of entrepreneurs. In 2007 almost 900 people have been denied access to over 450 shops in the city centre of The Hague. This new form of collaboration between police, public prosecution service and entrepreneurs has already been rewarded with the Regional Crime Control Platform ‘safety award’. However, the authors question the effects of this collaboration. They argue that the Collective Shop Ban creates its own public of ‘unwanted shoppers’, that can be banned from a shopping area by devising new terms of exclusion. This ‘public’ is subjected to new means of power, to be applied by private security guards and shop owners. While entrepreneurs celebrate the possibilities of this civil measure, the authors warn for the juridical and ethical consequences of this measure.


Loes Wesselink
Loes Wesselink is criminologe en werkt als junior onderzoeker-adviseur bij het COT Instituut voor Veiligheids- en Crisismanagement in Den Haag.E-,mail: wesselink.loes@gmail.com

Marc Schuilenburg
Marc Schuilenburg doceert aan de vakgroep Criminologie van de Vrije Universiteit te Amsterdam. E-mail: m.b.schuilenburg@rechten.vu.nl.

Patrick Van Calster
Patrick Van Calster is universitair hoofddocent aan het departement strafrecht en criminologie van de Universiteit Leiden.E-mail: p.j.v.van.calster@law.leidenuniv.nl
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