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Artikel

Open heimelijke netwerken in de Nederlandstalige georganiseerde synthetische-drugscriminaliteit

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2021
Trefwoorden synthetic drugs, poly-drug trafficking, organized crime, encrypted communication data, social network analysis
Auteurs Irma Vermeulen, Melvin Soudijn en Wouter van der Leest
SamenvattingAuteursinformatie

    In recent years, the authorities have dismantled several encrypted phone providers. These providers stored millions of messages about covert activities that were overtly exchanged between criminals. This type of communication offers a unique insight into serious organized crime and the people involved. Based on one such intercepted encrypted phone network, called PGP-Safe, we carried out a social network analysis on the Dutch-speaking synthetic drug market. Three findings stand out. Firstly, three-quarters of all accounts (N=4,158) are interconnected in a giant component, resulting in a criminal small-world effect. Secondly, the network appears to be robust. As a consequence, the removal of central accounts will hardly have any impact on the network as a whole. Thirdly, the majority of the accounts within the synthetic drug market is involved in poly-drug trafficking. The Dutch synthetic drug market is much more closely intertwined with other drug markets than is commonly known.


Irma Vermeulen
Drs. I.J. Vermeulen MSc is onderzoeker bij de afdeling Analyse & Onderzoek van de Dienst Landelijke Informatieorganisatie van de Landelijke Eenheid van de politie.

Melvin Soudijn
Dr. M.R.J. Soudijn is senior onderzoeker bij de afdeling Analyse & Onderzoek van de Dienst Landelijke Informatieorganisatie van de Landelijke Eenheid van de politie.

Wouter van der Leest
Drs. W.P.E. van der Leest is onderzoeker bij de afdeling Analyse & Onderzoek van de Dienst Landelijke Informatieorganisatie van de Landelijke Eenheid van de politie.
Artikel

Access_open Netwerken van netwerken in transit

De doorvoer van cocaïne via Nederland

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2021
Trefwoorden cocaine trafficking, ping-pong trade, poly-drug trafficking, qualitative social network analysis, transnational networks of networks
Auteurs Vanessa Dirksen, Wouter van der Leest en Irma Vermeulen
SamenvattingAuteursinformatie

    This article describes traits of the hitherto underexposed transit trade of cocaine via the Netherlands, based on a qualitative social network analysis of a diversity of data. Research findings show that the transit trade via the Netherlands is dominated by poly-drug trafficking. It is noteworthy that streams of predominantly mono-drugs are entering the Netherlands, while mainly streams of poly-drugs are leaving the country. Our research furthermore shows that cocaine intended for European markets may be transited via the Netherlands to European countries to which the cocaine was initially imported. This is what we refer to as ping-pong trade. Another characteristic of the transit trade of cocaine via the Netherlands is that the actors involved, mainly coordinate parts of the cocaine supply chain. Although different groups within the cocaine distribution chain collaborate, this does not necessarily mean they actually know each other. Taken together, the organization of the distributive trade of cocaine is in this article positioned as an interdependent transnational network of networks (NoN). We suggest that future research into the transit trade of cocaine should apply such a transnational NoN perspective to fully grasp the interdependence of the micro and meso levels of the trade and, in so doing, ultimately comprehend the effect this may have on the macro level.


Vanessa Dirksen
Dr. V. Dirksen is universitair docent en onderzoeker bij de afdeling Informatiekunde van de Open Universiteit.

Wouter van der Leest
Drs. W.P.E. van der Leest is onderzoeker bij de afdeling Analyse & Onderzoek van de Dienst Landelijke Informatieorganisatie van de Landelijke Eenheid van de politie.

Irma Vermeulen
Drs. I.J. Vermeulen MSc is onderzoeker bij de afdeling Analyse & Onderzoek van de Dienst Landelijke Informatieorganisatie van de Landelijke Eenheid van de politie.
Artikel

Een kijkje achter de schermen: een kwalitatieve studie over het ontstaan van cybercriminele carrières

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1 2021
Trefwoorden cybercrime, cyber offenders, criminal careers, online disinhibition, pathways
Auteurs Sifra Matthijsse, Wytske van der Wagen, Elina van ’t Zand e.a.
SamenvattingAuteursinformatie

    This qualitative study examines how criminal careers in cybercrime start and can be explained. Based on offender and expert interviews, the authors conclude that traditional factors linked with the initiation, such as a maturity gap (for juvenile offenders) and opportunism (for adult offenders), in combination with different types of (online) disinhibition – social, technical, situational and psychological – can explain the start of a criminal career. Features of the digital context appear to play a major role in the development of a criminal career and this requires more online supervision and education about – among other things – legal alternatives and the risks and boundaries of the online environment.


Sifra Matthijsse
S.R. Matthijsse MSc is als practicumdocent en tutor verbonden aan de Sectie Criminologie van de Erasmus Universiteit Rotterdam.

Wytske van der Wagen
Dr. W. van der Wagen is als universitair docent verbonden aan de Sectie Criminologie van de Erasmus Universiteit Rotterdam.

Elina van ’t Zand
Dr. mr. E.G. van ’t Zand is als universitair docent criminologie verbonden aan het Instituut voor Strafrecht en Criminologie van de Universiteit Leiden.

Tamar Fischer
Dr. T.F.C. Fischer is als universitair hoofddocent verbonden aan de Sectie Criminologie van de Erasmus Universiteit Rotterdam.
Artikel

Mensenhandel en mensensmokkel op Curaçao: een crime-scriptanalyse

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1 2021
Trefwoorden exploitation, crime scripting, situational crime prevention, Caribbean, Latin America
Auteurs Zahyanne Luisa
SamenvattingAuteursinformatie

    This article contains the results of a crime script analysis regarding the processes of human trafficking and human smuggling in Curaçao. The crime script analysis was conducted using data from five criminal investigations of human trafficking and seven criminal investigations of human smuggling. The results show that human trafficking in Curaçao consists of labor exploitation and sexual exploitation in bars, cafes and clubs. Young women are recruited from Colombia, Venezuela and the Dominican Republic to work as waitresses, trago girls and/or prostitutes. Once they arrive on the island, the women are dependent on the perpetrators and are subjected to exploitation In this research, two types of human smuggling have been witnessed. The first type consists of Venezuelan smugglers who transport fellow Venezuelan nationals to Curaçao by boat in exchange for payment. The second type of smugglers are Curaçao locals who rent out rooms to Venezuelans that reside on the island illegally.


Zahyanne Luisa
Z.C.R. Luisa MSc, LLM is momenteel werkzaam bij het Ministerie van Justitie en Veiligheid.
Artikel

Online jeugdcriminaliteit en ‘verkeerde vrienden’: wanneer is de samenhang het sterkst?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2-3 2020
Trefwoorden cyber delinquency, cyber offenders, peer deviance, social network
Auteurs Yaloe van der Toolen MSc, Dr. Marleen Weulen Kranenbarg en Prof. dr. Frank Weerman
SamenvattingAuteursinformatie

    This article investigates whether cyber delinquent behaviour of school friends, other offline friends and online contacts is related to cyber delinquent behaviour of individuals, and whether this relation differs for cyber dependent, cyber enabled and traditional crime. We used both direct and indirect measures of cyber delinquency of friends. We employed data from the first wave of a large-scale study on the causes of online delinquency among Dutch juveniles (n=889; mean age=16.8 years). The results suggest that both direct and indirect measures of levels of friend delinquency were related to levels of individual cyber offending. However, indirect measures had a stronger association with individual online delinquency than direct measures. This suggests that respondents make incorrect estimates of their friends’ levels of online delinquency. Moreover, no differences were found in the strength of the relation between individual online offending and indirect measures of online offending of school friends, offline friends and online friends. This suggests that friends of different types all play an important role in individual online offending.


Yaloe van der Toolen MSc
Y. van der Toolen MSc is junior onderzoeker bij de sectie Criminologie van de Vrije Universiteit Amsterdam en junior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) in Amsterdam.

Dr. Marleen Weulen Kranenbarg
Dr. M. Weulen Kranenbarg is universitair docent Criminologie bij de sectie Criminologie van de Vrije Universiteit Amsterdam.

Prof. dr. Frank Weerman
Prof. dr. F.M. Weerman is senior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) in Amsterdam en bijzonder hoogleraar Jeugdcriminologie bij de sectie Criminologie van de Erasmus Universiteit Rotterdam.
Artikel

Access_open Een eerste blik op online delinquentie

Verkennend onderzoek bij Vlaamse jongeren en vergelijking met offline delinquentie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2-3 2020
Trefwoorden online crime, juveniles, self-reported delinquency, risk profiles, prevalence
Auteurs Ena Coenen
SamenvattingAuteursinformatie

    Given that the social life of youngsters develops more and more online, attention for cybercrime has grown as well. However, no Flemish data is available yet. This study uses data from two representative samples of the Flemish youth to research the prevalence and risk profiles of on- and offline crime. Compared to offline crime, online crime is relatively limited. In addition, results showed that online offenders had the least severe risk profile, while offenders of both on- and offline delinquency had the most severe profile. For victimization, it appeared that it is important to consider individual types of offences, since complex differences were found between various crime types. These results indicate a limited, but not ignorable, occurrence of online crime, and a difference in risk profiles for offline and online crime.


Ena Coenen
E. Coenen is wetenschappelijk medewerker bij het Leuvens Instituut voor Criminologie aan de KU Leuven.
Artikel

Criminaliteit, digitalisering en de online sociale wereld: dezelfde processen in een nieuwe sociale context?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2019
Trefwoorden digitalisation, crime, cybercrime, social media, online
Auteurs Prof. dr. Frank Weerman
SamenvattingAuteursinformatie

    This contribution reflects on the criminological meaning of the still ongoing trend of digitalisation. What does this mean for crime as a phenomenon and for the explanation of criminal behaviour? Not only did we see the emergence of new types of offending, also the context of crime has changed. In principle, the underlying explanatory processes can remain the same, but their application in the online world is complex and deserves further attention. Online social interactions are not only important for online crime, but also for traditional offenses. However, systematic research on how this actually takes place is scarce.


Prof. dr. Frank Weerman
Prof. dr. F.M. Weerman is bijzonder hoogleraar jeugdcriminologie aan de Erasmus Universiteit Rotterdam en senior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) in Amsterdam.
Artikel

Ondermijnende aspecten van georganiseerde criminaliteit en de rol van de bovenwereld

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2016
Trefwoorden undermining, organized crime, corruption, white-collar crime, integrity
Auteurs Prof. dr. Emile Kolthoff en Dr. Sjaak Khonraad
SamenvattingAuteursinformatie

    The concept of undermining or subversive crime seems to be linked undistinguishably to organized crime and both terms are sometimes used synonymously. Definitions of the phenomenon are sometimes based on its effects, while others have their focus on its manifestations. Discussion on the underlying causes is lacking. Regularly, activities that actually do not relate to undermining are labeled as such.
    This reflection critically examines and evaluates the concept of undermining. The central question is what has to be understood under the concept of undermining and, above all: what not? The phenomenon is further explored, with the aim of stimulating scientific debate and empirical research. The role of the government and other institutions in facilitating undermining is explicitly discussed as well as the possibilities to strengthen their resilience.


Prof. dr. Emile Kolthoff
Prof. dr. E.W. Kolthoff is hoogleraar criminologie aan de Open Universiteit en lector Veiligheid, Openbare Orde en Recht bij Avans Hogeschool in Den Bosch.

Dr. Sjaak Khonraad
Dr. J.L.H.T.M. Khonraad is lector Integrale Veiligheid bij Avans Hogeschool in Den Bosch.
Artikel

Daling in geregistreerde jeugdcriminaliteit

Enkele mogelijke verklaringen

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2015
Trefwoorden crime drop, juvenile suspects, trends, macro explanations, time series analysis
Auteurs Dr. André van der Laan en Dr. Gijs Weijters
SamenvattingAuteursinformatie

    In the Netherlands, from 2007 police census data show a sharp decrease in the number of suspects of crime among juveniles aged 12 to 25 years old. How to explain this decrease remains unclear. Constructionist theories suggest that changes in police census data are fully explained by changes in the law enforcement system. Normative theories argue that changes in police data can be explained by demographic, social or economic trends. In this paper, we systematically explored the (inter)national literature for macro factors that could explain changes in juvenile crime. Next, in an empirical case study of the city of Amsterdam, we explored which of these macro factors relate to changes over time in the number of juvenile suspects of crime and the types of crime they were suspected of. Due to multicollinearity of the macro factors multivariate analyses were not possible. Our results indicate that the decrease in police registered juvenile crime in Amsterdam should be explained by multiple factors. Some of these factors concern policy investments (such as focus on school drop-out and targeted law enforcement), other factors relate to socialdemographic developments which appeared coincidentally.


Dr. André van der Laan
Dr. A.M. van der Laan is senioronderzoeker bij de afdeling Criminaliteit Rechtshandhaving en Sancties (CRS) van het WODC. Zijn onderzoeksinteresse betreft ontwikkelingen in en achtergronden van jeugdcriminaliteit en veelplegers en effecten van justitiële sancties.

Dr. Gijs Weijters
Dr. G.M. Weijters is onderzoeker bij de afdeling Criminaliteit Rechtshandhaving en Sancties (CRS) van het WODC.

    The explosive growth of the Internet has led to countless new possibilities, and it opened the way for societal progress and an extensive globalization and digitization. However, the original ambition of the Internet as a free, open and neutral medium has also led to new possibilities in the field of crime. The current paper illustrates how governments dealt with the development of the Internet and it gives an explanation for why and how unintended side effects have manifested in society. Using the phenomenon of digital child abuse, this paper offers recommendations for an effective government response and for an effective detection of and fight against cybercrime.


Madeleine van der Bruggen MSc MA
M. van der Bruggen, MSc MA is Operationeel Specialist Zeden bij de Politie Landelijke Eenheid (Dienst Landelijke Recherche) – Team Bestrijding Kinderporno en Kindersekstoerisme (TBKK).
Artikel

Over pragmatisme en strategie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2014
Trefwoorden corporate security, private investigations, private settlements, forum shopping
Auteurs Clarissa Meerts MSc
SamenvattingAuteursinformatie

    In this article data derived from observations and interviews are used to examine private methods of investigation as used by corporate security providers in the Netherlands, and the private settlement options which follow those investigations. It is argued that, rather than leadership being exercised by public actors and institutions (police, prosecutors, criminal courts and also civil courts), those actors are selectively and strategically mobilised by corporate security, on behalf of their private sector clients. Corporate security and its clients have a ‘pick and choose’ approach when searching for an optimal solution for the incident at hand (forum shopping).


Clarissa Meerts MSc
C.A. Meerts, MSc is promovenda en wetenschappelijk docent bij de Sectie Criminologie aan de Erasmus School of Law, Erasmus Universiteit Rotterdam.
Artikel

De brug tussen wetenschap en opsporingspraktijk

Onderzoek naar de toepassing van sociale netwerkanalyse in de opsporing

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2014
Trefwoorden social network analysis (SNA), big data, criminal investigation, intelligence
Auteurs Drs. Paul Duijn en Dr. Peter Klerks
SamenvattingAuteursinformatie

    Social network analysis (SNA) has taken its place in the field of criminology, although among Dutch criminologists the emphasis remains on conceptual contributions. Meanwhile, the world of criminal investigation and intelligence has witnessed the development of a blossoming SNA-practice. The emergence of big data makes SNA an indispensable tool to exploit the oceans of data in a meaningful way. Unfortunately, when it comes to employing SNA, academia and the investigations and intelligence domains remain separated. While Dutch analysts adopt scientific ideas and concepts, they rarely contribute to the body of literature; confidential SNA reports remain inaccessible. Shedding light on over forty SNA related internal police studies, this article bridges the gap between Dutch academic criminologists and ‘pracademics’ in law enforcement.


Drs. Paul Duijn
Drs. P.A.C. Duijn is als strategisch analist werkzaam binnen de eenheid Den Haag van de Nationale Politie en is als docent verbonden aan de Politieacademie.

Dr. Peter Klerks
Dr. P.P.H.M. Klerks werkt als raadadviseur bij het Parket-Generaal van het Openbaar Ministerie en is als docent verbonden aan de Politieacademie.
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