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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

De Dark Triad persoonlijkheidskenmerken en online en offline agressie: een verkennende studie op basis van zelfrapportages van jonge adolescenten

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2020
Trefwoorden Dark Triad, self-reported aggression, psychopathy, narcissism, Machiavellianism
Auteurs Clio Lambrechts, Lieven Pauwels en Wim Hardyns
SamenvattingAuteursinformatie

    The current study investigates the relationship between the Dark Triad personality traits (consisting of narcissism, psychopathy and Machiavellianism) and three different forms of aggression: online aggression, overt aggression and relational aggression. The sample consisted of 1,051 adolescents between 12 and 16 years old. Results show that psychopathy and Machiavellianism are positive predictors of the three forms of aggression, while narcissism is a positive predictor of online aggression only.


Clio Lambrechts
C. Lambrechts is doctoraatsonderzoekster aan de Vakgroep Criminologie, Strafrecht en Sociaal Recht (Universiteit Gent) en lid van het Institute for International Research on Criminal Policy (IRCP).

Lieven Pauwels
Prof. dr. L. Pauwels is professor aan de Vakgroep Criminologie, Strafrecht en Sociaal Recht (Universiteit Gent) en directeur van het Institute for International Research on Criminal Policy (IRCP).

Wim Hardyns
Prof. dr. W. Hardyns is professor aan de Vakgroep Criminologie, Strafrecht en Sociaal Recht (Universiteit Gent) en lid van het Institute for International Research on Criminal Policy (IRCP). Daarnaast is hij als gastprofessor verbonden aan de master in de Veiligheidswetenschappen van de Universiteit Antwerpen.
Artikel

De kracht van verbinding

Een kwalitatief onderzoek naar de rol van lotgenotencontact voor nabestaanden van zware verkeersdelicten

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1 2020
Trefwoorden peer support, co-victims, traffic offenses, Big Two, narratives
Auteurs Dr. Pauline Aarten, Pien van de Ven MSc en Rik Ceulen MSc
SamenvattingAuteursinformatie

    For co-victims of severe traffic offenses in the Netherlands, peer support is offered. However, no research into the meaning of peer support for this specific group of victims has been conducted. In this study, nineteen narrative interviews with co-victims of traffic offenses were collected. These interviews show that through dialogue and the sharing of experiences, as well as the care and support for each other, peer support offers the possibility to work on the meaning-making of the traffic offense and its aftermath. The article ends with policy implications and steps for follow-up research.


Dr. Pauline Aarten
Dr. P.G.M. Aarten is universitair docent bij het Institute of Security and Global Affairs van de Universiteit Leiden.

Pien van de Ven MSc
P. van de Ven MSc is promovenda bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) & Slachtofferhulp Nederland

Rik Ceulen MSc
R. Ceulen MSc is criminoloog bij gemeente Tilburg.
Artikel

De toekomst is aan de surfende criminoloog

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2019
Trefwoorden criminology, artificial intelligence, research methods, research funding, causality
Auteurs Prof. dr. Jeroen Maesschalck
SamenvattingAuteursinformatie

    If, as criminologists, we really want to contribute to solutions for the great challenges of our time, we should be…surfing more. In a dynamic environment full of contradictions, we should be constantly in motion, moving left and right between different theoretical-normative perspectives as well as between methodological perspectives. This paper clarifies that surfing movement with some illustrations. It then proposes three goals for a criminological research agenda that should help us address the great challenges: actual (as opposed to superficial) relevance for practice, causal ambitions and multidisciplinarity. The paper concludes with some reflections about the organization and funding of criminological research.


Prof. dr. Jeroen Maesschalck
Prof. dr. J. Maesschalck is verbonden aan het Leuven Instituut voor Criminologie aan de KU Leuven.
Artikel

Een tweelingstudie naar indicatoren van genetische en culturele transmissie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2019
Trefwoorden intergenerational continuity, rule-breaking behavior, genes, environment, twin study
Auteurs Camiel van der Laan MSc, Dr. Steve van de Weijer, Dr. Michel Nivard e.a.
SamenvattingAuteursinformatie

    In the present study, the role of genetic and cultural transmission in intergenerational continuity of rule-breaking behavior (RBB) was investigated. Based on the resemblance within 3,982 Dutch twin pairs, aged 13 to 17 years, the relative importance of genetic (G), shared environmental (C), and unique environmental (E) influences on RBB was estimated. Cultural transmission, the process of passing on knowledge, norms and values, can lead to similarities within families, and forms part of the shared environment of children growing up in the same family. The authors found no evidence for shared environmental influences, and consequently no indication of a role for cultural transmission. Genetic influences explained 60 percent of the variance in rule-breaking behavior at age 13 to 17, implying that intergenerational continuity at this age is mainly driven by genetic transmission.


Camiel van der Laan MSc
C.M. van der Laan is promovendus bij de afdeling Biologische Psychologie aan de Vrije Universiteit Amsterdam en bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).

Dr. Steve van de Weijer
Dr. S.G.A. van de Weijer is postdoctoraal onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).

Dr. Michel Nivard
Dr. M.G. Nivard is universitair docent bij de afdeling Biologische Psychologie aan de Vrije Universiteit Amsterdam.

Prof. dr. Dorret Boomsma
Prof. dr. D.I. Boomsma is hoogleraar biologische psychologie aan de Vrije Universiteit Amsterdam en directeur van het Nederlands Tweelingen Register.
Artikel

Mannen met een hobby

Outlaw motorclubs, nieuwsmedia en imagopolitiek

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2017
Trefwoorden rhetoric, framing, OMG, ethos, news
Auteurs Dr. Willem Koetsenruijter en Dr. Peter Burger
SamenvattingAuteursinformatie

    This study contains a qualitative framing analysis of outlaw motor clubs in Dutch newspaper articles. These clubs appear in the news as a source for positive framing to counterbalance the prevailing organized crime frame. The study shows with what rhetorical means club members are framed and how news media balance a criminal and a non-criminal image. In news articles club members refer to ethical norms and group values, and appear to employ mitigation strategies which take the hard edges off the frame and simultaneously increase their credibility.


Dr. Willem Koetsenruijter
Dr. A.W.M. Koetsenruijter is universitair docent bij de Faculteit der Geesteswetenschappen van de Universiteit Leiden.

Dr. Peter Burger
Dr. J.P. Burger is universitair docent bij de Faculteit der Geesteswetenschappen van de Universiteit Leiden.
Artikel

Effecten van informatieverstrekking op agressie van UWV-cliënten

Een experimentele scenariostudie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1-2 2017
Trefwoorden experimental scenario study, frustration aggression, informational justice, workplace violence, negative affect
Auteurs Natascha Sprado MSc, Dr. Tamar Fischer en Lisa van Reemst MSc
SamenvattingAuteursinformatie

    This study investigates the effect of providing information about decision making on aggression of clients of the Dutch Employee Insurance Agency (UWV). The expectation is that providing adequate information leads to a decrease in aggression, because it influences feelings of informational justice and frustration. UWV-clients (N=1.415) participated in an experimental scenario study (adequate vs. limited information providing). Next to aggression, psychological, UWV and social demographic characteristics were measured. Compared to limited information, receiving adequate information results in lower aggression. Clients with more negative affect show more aggression, but receiving adequate information especially reduces aggression in these clients.


Natascha Sprado MSc
N.N. Sprado, MSc is junior onderzoeker bij de sectie Criminologie van de Erasmus School of Law, Erasmus Universiteit Rotterdam. Ten tijde van de dataverzameling van de beschreven studie was zij masterstudent.

Dr. Tamar Fischer
dr. T.F.C. Fischer is universitair docent bij de sectie Criminologie van de Erasmus School of Law, Erasmus Universiteit Rotterdam.

Lisa van Reemst MSc
L. van Reemst, MSc is promovenda bij de sectie Criminologie van de Erasmus School of Law, Erasmus Universiteit Rotterdam.
Artikel

Criminaliteit relateren aan verblijfspopulaties

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2016
Trefwoorden crime rate, ambient population, residential population, commuters, tourists
Auteurs Prof. dr. Wim Bernasco en Dr. Chantal van den Berg
SamenvattingAuteursinformatie

    Crime victimization risk is usually calculated by dividing the number of crimes by the size of the local population. This procedure does not account for the mobility of the residents. We develop and apply an alternative procedure that divides the number of crimes by the number of people actually present: the ambient population. The ambient population includes commuters, tourists and other visitors. The regular and the alternative crime rate measures of the four largest cities in the Netherlands are compared using data of the ‘AD Misdaadmeter’. We find that ambient populations are larger than residential populations, in particular in Amsterdam. The differences are small however, and the increased effort of calculating ambient populations does not compensate the increased precision in crime measures. For comparisons between annual crimes rates of cities or municipalities, it is sufficient to divide numbers of crimes by populations.


Prof. dr. Wim Bernasco
Prof. dr. W. Bernasco is bijzonder hoogleraar ‘Ruimtelijke analyse van criminaliteit’ bij de afdeling Ruimtelijke Economie van de Vrije Universiteit Amsterdam en senior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).

Dr. Chantal van den Berg
Dr. C.J.W. van den Berg is onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).
Diversen: Artikelen

Outlawbikers voor de rechter: een analyse van rechterlijke uitspraken in de periode 1999-2015

Tijdschrift Tijdschrift voor Criminologie, Aflevering 3 2016
Trefwoorden outlaw motorcycle clubs, OMCG, ‘1%-MC’, organized crime
Auteurs Prof. dr. Arjan Blokland en Jeanot David MSc
SamenvattingAuteursinformatie

    The fight against outlaw motorcycle gangs is high on the Dutch criminal justice agenda. Yet, much is unclear about the extent to which Dutch outlaw motorcycle clubs are involved in (organized) crime, and the exact role club membership plays in the crimes committed by individual members. This study analyses all court decisions between 1999 and 2015 that were made publicly available through the Rechtspraak.nl database to yield insight in the frequency and nature of (members of) outlaw motorcycle clubs’ court appearances. Results show that members of outlaw biker clubs are convicted for violence and drug offending. In a third of all incidents, fellow club members are among the co-offenders. Membership of an outlaw motorcycle club is often used to put pressure on victims. Non-members also make use of the violent track record of outlaw bikers.


Prof. dr. Arjan Blokland
Prof. dr. A.A.J. Blokland is bijzonder hoogleraar Criminology & Criminal Justice aan de Universiteit Leiden en senior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving.

Jeanot David MSc
J.P.G. David MSc was ten tijde van het onderhavige onderzoek werkzaam als onderzoeksassistent bij de afdeling Criminologie van de Universiteit Leiden.
Artikel

Jeugddelinquentie in vergelijkend perspectief

Vertellen micro- en macroanalyses hetzelfde verhaal?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2015
Trefwoorden cross-national criminology, juvenile delinquency, theoretical integration, self-report survey, theory-testing
Auteurs Chris Marshall PhD en Prof. Ineke Haen Marshall
SamenvattingAuteursinformatie

    This article presents a micro- and a macro-level analysis of predictors of delinquency in order to contribute to the discussion about the micro-macro problem in criminology. We use Coleman’s boat (1990) to situate our research question. Individual theories dominate the field of delinquency, there are few theories at macro level. Cross-level theoretical integration primarily takes place between individual (micro) and community (meso) levels, and hardly ever on (national) macro level. Our question is to which extent macro-level theory fruitfully may use concepts drawn from micro-level theory. We test a micro and a macro model using indicators from the domains of family, school, friends/peers and economy, using data collected by the Second International Self-Report Study of Delinquency (ISRD2), a cross-national self-report survey of delinquency and victimization among students between 12 and 16 years in 30 countries (n=71.436). Dependent variable at micro level is versatility (last year), at the macro level (national) we use contacts with the police for youths under 18. Results confirm the importance of including macro context (country clusters) in the analysis of individual delinquency. We further conclude that factors related to family and friends correlate at both micro and macro level with measures of delinquency; the role of school and economic factors is less clear-cut. The article concludes with the recommendation to give the micro-macro problem in delinquency theory a more central and explicit position in research programs.


Chris Marshall PhD
C.E. Marshall, PhD is Associate Professor bij de School of Criminology and Criminal Justice van de University of Nebraska-Omaha (VS).

Prof. Ineke Haen Marshall
Prof. I. Haen Marshall is Professor bij de School of Criminology and Criminal Justice en de Department of Sociology & Anthropology van de Northeastern University in Boston (VS).
Artikel

Kinderpornorechercheurs en hun mentale weerbaarheid

Hoe rechercheurs de impact van kinderpornografiezaken ervaren en daarmee omgaan

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2014
Auteurs Drs. Henk Sollie, Dr. Nicolien Kop en Prof. dr. Martin Euwema
SamenvattingAuteursinformatie

    Eleven Teams against Child Abuse Images and Transnational Child Sex Offences (TBKKs) are operating within the Dutch National Police Force. This study provides an in-depth analysis of the resilience of criminal investigators working in these teams and how they perceive and cope with daily work stressors. Observational studies within five TBKKs and 35 semi-structured interviews with child pornography investigators revealed that managing their heavy caseloads, classifying abusive images, dealing with suspects and conducting home searches can sometimes be (very) challenging. Despite these demanding work aspects, investigators experience low levels of stress. By employing emotional detachment, self-reflection, workload regulation, social support and meaningfulness, they overcome the stress of investigating internet child exploitation. However, successful implementation of these resilience-enhancing strategies depends on the availability of several individual and organizational resources. To reduce the risk of health problems and to stimulate positive functioning, these resources require permanent investment from police management and investigators themselves.


Drs. Henk Sollie
Drs. H. Sollie is promovendus ‘Mentale Weerbaarheid binnen de Opsporing’ bij de Nederlandse Politieacademie.

Dr. Nicolien Kop
Dr. N. Kop is lector Criminaliteitsbeheersing & Recherchekunde bij de Nederlandse Politieacademie.

Prof. dr. Martin Euwema
Prof. dr. M.C. Euwema is hoogleraar Organisatiepsychologie, KU Leuven.
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.
Artikel

‘We zijn geen padvinders’

Een verkennend onderzoek naar de criminele carrières van leden van één procent motorclubs

Tijdschrift Tijdschrift voor Criminologie, Aflevering 3 2014
Trefwoorden Outlaw Motorcycle Gangs, one percenters, criminal careers, adult onset
Auteurs Prof. Dr. Mr. Arjan Blokland, Melvin Soudijn en Dr. Eric Teng
SamenvattingAuteursinformatie

    Using officially registered conviction history data, this study examines the criminal careers of 601 members of Dutch outlaw motorcycle gangs, identified as such by the Dutch police. We find that the average 1% er in our sample is a 44-year-old, Dutch-born male. The large majority of these 1% ers have been convicted for a crime at least once. One in four convicted 1% ers can be classified as a chronic offender accumulating over ten convictions from age 12 until 2013. The large majority of 1% ers experiences an adult onset of their officially registered criminal career, with almost half acquiring their first conviction when they are aged 30 or older, challenging the generality of criminology's accepted conclusions about criminal career development.


Prof. Dr. Mr. Arjan Blokland
Prof. Dr. Mr. A.A.J. Blokland is senior Onderzoeker Nederlands Studiecentrum Criminaliteit en Rechtshandhaving en Bijzonder Hoogleraar Criminology and Criminal Justice, Universiteit Leiden.

Melvin Soudijn
Politie, Landelijke Eenheid afdeling Analyse & Onderzoek

Dr. Eric Teng
Dr. M.R.J. Soudijn is Senior Onderzoeker, Landelijke Eenheid, afdeling Analyse & Onderzoek.
Artikel

Detentie en gevolgen van detentie

Onderzoek in Nederland en België

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2014
Trefwoorden Detentiebeleid, detentieonderzoek, detentiebeleving, gevangeniscultuur, detentie-effecten
Auteurs Prof. dr. Kristel Beyens, Dr. Anja Dirkzwager en Prof. dr. Dirk Korf
SamenvattingAuteursinformatie

    Prison policy in Belgium and the Netherlands is changing rapidly. While Belgium struggles with a persisting prison overcrowding, the Netherlands strongly cuts back on the prison system and is closing an increasing number of prisons. This introductory article to a special issue on detention starts with a short outline of recent changes in Dutch and Belgian prison policy, focusing on developments in detention capacity and prison population. Subsequently we present an overview of empirical criminological research in the Netherlands and Belgium, situated within the international literature, with a specific focus on studies regarding life in detention and effects of detention on prisoners' lives and on their social environment. Finally, we reflect upon existing detention research in both countries, e.g. in terms of gaps in research topics and methodology, and discuss some future developments.


Prof. dr. Kristel Beyens
Prof. dr. K. Beyens is hoogleraar en voorzitter van de vakgroep Criminologie van de Vrije Universiteit Brussel.

Dr. Anja Dirkzwager
Dr. A.J.E. Dirkzwager is senior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).

Prof. dr. Dirk Korf
Prof. dr. D.J. Korf is bijzonder hoogleraar criminologie en directeur van het Bonger Instituut, faculteit der rechtsgeleerdheid, Universiteit van Amsterdam.
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