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Artikel

Access_open Procedurele rechtvaardigheid in de strafrecht­keten

Hoe ervaren gedetineerden de bejegening door strafrecht­actoren?

Tijdschrift Tijdschrift voor Criminologie, Aflevering Online First 2021
Trefwoorden procedural justice, treatment, multiple criminal justice authorities, criminal justice system
Auteurs Matthias van Hall, Anja Dirkzwager, Peter van der Laan e.a.
SamenvattingAuteursinformatie

    It has been proposed that when people perceive their treatment by criminal justice actors as more procedurally just, they will be more likely to comply with the law. Existing research mainly focused on the police or the judge. This longitudinal study examined how prisoners experienced their treatment by five different criminal justice actors using data from the Prison Project. The prisoners were most positive about the procedurally fair treatment by their lawyer and least positive about the treatment by the police. Additionally, the perceived treatment by the police was associated with the treatment by other actors at subsequent moments.


Matthias van Hall
M. van Hall MSc is promovendus bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).

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

Peter van der Laan
Prof. P.H. van der Laan is senior onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) en bijzonder hoogleraar reclassering aan de Vrije Universiteit Amsterdam.

Paul Nieuwbeerta
Prof. P. Nieuwbeerta is hoogleraar Criminologie aan de Faculteit der Rechtsgeleerdheid van de Universiteit Leiden.
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

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

Wie houdt de wacht?

Veranderingen in toezicht tijdens de jongvolwassenheid

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2-3 2020
Trefwoorden parental monitoring, self-control, delinquency, social control
Auteurs Dr. Jessica Hill MSc en Prof. dr. mr. Arjan Blokland
SamenvattingAuteursinformatie

    In this study we examine whether parental monitoring remains a protective factor in the lives of emerging adults, as well as the extent to which monitoring in other settings replaces the protective role of the parents. We use data collected for the TransAM project, a longitudinal survey of 970 emerging adults (18-24 years) to examine monitoring in a range of different contexts using an instrument based on Stattin and Kerr’s parental monitoring scale (2000). Results indicate that whilst parental control plays a protective role in the first years of emerging adulthood, we find no evidence that monitoring in other settings replaces the protective role of parents. However, monitoring of the self, i.e., self-control, has an increasingly strong relationship with delinquency during emerging adulthood.


Dr. Jessica Hill MSc
Dr. J.M. Hill (MSc) is universitair docent criminologie aan de Vrije Universiteit, Amsterdam.

Prof. dr. mr. Arjan Blokland
Prof. dr. mr. A.A.J. Blokland is als bijzonder hoogleraar Criminology & Criminal Justice verbonden aan het Instituut voor Strafrecht & Criminologie van de Universiteit Leiden en als senior onderzoeker verbonden aan het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR).
Artikel

Welzijn, primaire levensbehoeften en delinquentie bij adolescenten

Etiologische assumpties van het Good Lives Model getoetst

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2-3 2020
Trefwoorden GLM, Rehabilitation, Juvenile delinquency, Life satisfaction, Youth
Auteurs Colinda Serie PhD, Prof. dr. Stefaan Pleysier, Prof. dr. Johan Put e.a.
SamenvattingAuteursinformatie

    A recent rehabilitation theory, the ‘Good Lives Model’ (GLM), states that interventions that work towards a higher well-being can reduce recidivism risk more sustainably by promising a happier, pro-social life, rather than just a less harmful one. Although the GLM theory appears promising, limited empirical research has examined its underlying assumptions, applicability and its effectiveness. Research into the GLM with youth is even more limited. Therefore, in the current study, we investigate the main etiological assumptions of the GLM in a large group of adolescents between 14 and 18 years old from the general population (N=5.776), by means of self-report survey data on well-being, primary human goods and delinquency. The results show that a lower subjective global well-being is related to delinquent behavior. Especially the primary human goods of relatedness and working towards a financially stable future appear to be important goals for interventions aimed at rehabilitation of juvenile offenders.


Colinda Serie PhD
C.M.B. Serie is PhD-onderzoeker aan de KU Leuven.

Prof. dr. Stefaan Pleysier
Prof. dr. S. Pleysier is hoofddocent aan de Faculteit Rechtsgeleerdheid van de KU Leuven en coördinator van de Onderzoekslijn Jeugdcriminologie en Jeugdrecht aan het Leuvens Instituut voor Criminologie (LINC).

Prof. dr. Johan Put
Prof. dr. J. Put is gewoon hoogleraar jeugd- en welzijnsrecht aan de KU Leuven.

Prof. dr. Corine de Ruiter
Prof. dr. C. de Ruiter is als hoogleraar Forensische Psychologie, verbonden aan de Universiteit Maastricht.
Artikel

Wie zijn jeugdige veelplegers?

Een onderzoek naar aantallen en kenmerken op basis van politieregistraties en zelfrapportage

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2-3 2020
Trefwoorden Juvenile delinquency, Frequent offending, Research methods, Self reports, Police registrations
Auteurs Prof. dr. Frank Weerman, Prof. dr. Gerben Bruinsma, Prof. dr. Wim Bernasco e.a.
SamenvattingAuteursinformatie

    The aim of this study was to provide more insight in prevalence and aetiology of juvenile frequent offending, employing police registered data as well as self-report information. We combined data about 519 youths that participated in a self-report study in the region of The Hague with police register data (the HKS system) from the police unit of The Hague. The results indicate that a substantial part of youths that report a large amount of offenses themselves are not formally known as ‘juvenile frequent offender’. Causal factors derived from four major criminological theories can be found in a more pronounced way among juvenile frequent offenders than among youths that incidentally commit offenses. In general, there are similarities between the characteristics of juvenile frequent offenders defined by police register data and those defined by self-reports, but, on average, frequent offenders that are known by the police spend more time unstructured socializing with friends. We conclude that research using the method of self-report is well capable to find juvenile frequent offenders, and that this method also leads to useful information about the causes of their delinquent behaviour.


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.

Prof. dr. Gerben Bruinsma
Prof. dr. G.J.N. Bruinsma is emeritus directeur van het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) en emeritus hoogleraar Omgevingscriminologie aan de Vrije Universiteit Amsterdam.

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

Prof. dr. Lieven Pauwels
Prof. dr. L. Pauwels is directeur van het Institute for International Research on Criminal Policy (IRCP) en als hoogleraar verbonden aan de Universiteit van Gent.
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

Risicogedrag van jongeren

In hoeverre verschilt de invloed van leeftijdsgenoten op het beginnen met risicogedrag en aanpassen in risicogedrag?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2-3 2020
Trefwoorden antisocial behavior, social network analysis, SIENA, subtance use, onset
Auteurs Dr. Aart Franken, Dr. Jan Kornelis Dijkstra, Dr. Zeena Harakeh e.a.
SamenvattingAuteursinformatie

    Studies investigating peer influence on risk behaviors, such as antisocial behavior and substance abuse, mostly study the amount of change in which adolescents adapt their risk behavior to become more similar to their friends. Onset of risk behavior, changing form having no experience to having any experience with risk behavior, has been studies far less. This study investigates friends’ influence on the onset of risk behavior and their influence in changes in risk behavior. Hypotheses were tested using SNARE (Social Network Analysis of Risk behavior in Early adolescence) data (N=1.144), containing information on risk behavior (i.e. antisocial behavior, alcohol use, and tobacco use) and friendship networks at three timepoints during the first year of secondary education (Mage= 12.7; SD=0.47). Analyses, using longitudinal social network analysis (RSIENA), showed that although adolescents adapt their risk behavior to become more similar to their friends, they are not influence in by their friends in the onset of risk behavior. These findings suggest s more nuanced role of friends in the onset of risk behavior. Interventions aiming at friends might benefit from differentiating between the onset and further (dis)continuation of risk behavior as these friendship influence processes might be less relevant for the onset of risk behavior.


Dr. Aart Franken
Dr. A. Franken is psycholoog NIP (i.o.t. gz-psycholoog) bij de Praktijk voor leer- en gedragsadviezen.

Dr. Jan Kornelis Dijkstra
Dr. J.K. Dijkstra is UHD Sociologie aan de Rijksuniversiteit Groningen en senior-analist RIEC Noord.

Dr. Zeena Harakeh
Dr. Z. Harakeh is onderzoeker bij TNO, expertisegebied Child Health.

Dr. Wilma Vollebergh
Prof. dr. W.A.M. Vollebergh is emeritus hoogleraar Jeugdstudies aan de Universiteit Utrecht.
Onderzoeksnotities

Woorden maken werelden (en cijfers ook): hoe hoog is nu het percentage veroordeelde outlawbikers?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 3 2019
Trefwoorden OMCG, Hells Angels, gang database, type 2 error, criminal organization
Auteurs Prof. dr. mr. Arjan Blokland
SamenvattingAuteursinformatie

    In our 2017 report “Profielen van outlaw bikers and outlawbiker clubs” we concluded, “Dutch members of outlaw motorcycle gangs disproportionally frequently have a history criminal justice contacts”. The attorney representing the Hells Angels in the civil law suit filed by the Dutch public prosecutor requesting a civil ban of the Hells Angels, after consulting an expert methodologist, challenged this conclusion due to the possibility of type 2 and type 1 errors in constructing our sample from a police gang database. Here we calculate the proportion of convicted Hells Angels members under different levels of potential bias resulting from these errors. We find that a realistic estimate of the proportion of convicted individuals among the Dutch Hells Angels membership is between 58-96%, which, at a minimum, is roughly twice that in an age-matched population of male motorcyclists who are not members of an outlaw motorcycle club.


Prof. dr. mr. Arjan Blokland
Prof. dr. mr. A.A.J. Blokland is senior-onderzoeker bij het Nederlands Studiecentrum Criminaliteit en Rechtshandhaving (NSCR) en bijzonder hoogleraar Criminology and Criminal Justice aan de Faculteit der Rechtsgeleerdheid van de Universiteit Leiden.
Artikel

Intergenerationele continuïteit of discontinuïteit van crimineel gedrag?

Een onderzoek naar de modererende invloed van samenwonen en de geografische afstand tussen ouder en kind

Tijdschrift Tijdschrift voor Criminologie, Aflevering 2 2019
Trefwoorden intergenerational transmission, discontinuity, criminal parent, geographical distance, exposure
Auteurs Dr. Steve van de Weijer
SamenvattingAuteursinformatie

    This study (N=921) examines whether living together with a criminal parent moderates the intergenerational continuity of crime. Results are mixed, but show that the intergenerational continuity of crime decreases when the child lived together with the criminal parent for a shorter period of time. This association is most strong for children whose criminal mothers live on a large distance from them. Longitudinal fixed effects models, however, show that these results are likely the consequence of between-individual differences and therefore do not reflect causal influences on the intergenerational continuity of crime.


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

Patronen in regelovertreding in de chemische industrie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2018
Trefwoorden corporate crime, compliance, longitudinal, life course, criminal career
Auteurs Dr. Marieke Kluin MSc., Prof. dr. mr. Arjan Blokland, Prof. mr. Wim Huisman e.a.
SamenvattingAuteursinformatie

    Unlike criminal career research into the criminal behavior of natural persons, longitudinal research into rule violations by corporations is still scant. The few available studies are mostly limited to US corporations, and suffer from either a small sample size or a short follow-up period, limiting the generalizability of their findings. The present study uses longitudinal data on rule violating behavior of 494 Dutch chemical corporations derived from yearly inspections (N=4.367) of the relevant safety and environmental agencies between 2006 and 2017. The study aims to gain insight in the patterning of rule violations by Dutch chemical corporations, and the extent to which these patterns are associated with sector and corporate characteristics. The results show that rule violation is common among Dutch chemical corporations. A small minority of chronically violating corporations however, is responsible for a disproportional share of all observed rule violations. Using group-based trajectory modelling (GBTM) we distinguish several longitudinal patterns of rule violations in our data. Available sector and corporation characteristics are only weakly associated with the patterns of rule violations identified.


Dr. Marieke Kluin MSc.
Dr. M.H.A. Kluin is als universitair docent Criminologie verbonden aan het Instituut voor Strafrecht & Criminologie van de Universiteit Leiden.

Prof. dr. mr. Arjan Blokland
Prof. dr. mr. A.A.J. Blokland is als bijzonder hoogleraar Criminology & Criminal Justice verbonden aan het Instituut voor Strafrecht & Criminologie van de Universiteit Leiden en als senior onderzoeker verbonden aan het NSCR.

Prof. mr. Wim Huisman
Prof. mr. W. Huisman is als hoogleraar criminologie verbonden aan de afdeling Strafrecht & Criminologie van de Vrije Universiteit Amsterdam.

Dr. Marlijn Peeters
Dr. M.P. Peeters is als universitair docent Criminologie verbonden aan het Instituut voor Strafrecht & Criminologie van de Universiteit Leiden.

Ellen Wiering MSc
E. Wiering, MSc is als junior onderzoeker verbonden aan het Instituut voor Strafrecht & Criminologie van de Universiteit Leiden.

Steven Jaspers MSc
S.J. Jaspers, MSc studeerde criminologie aan de Vrije Universiteit Amsterdam.
Artikel

Het verloop van de partnerrelaties van gedetineerden tijdens en na detentie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 3 2018
Trefwoorden detention, partnerships, relationship quality, longitudinal
Auteurs Anne Brons MSc, Prof. dr. Paul Nieuwbeerta en Dr. Anja Dirkzwager
SamenvattingAuteursinformatie

    In the current criminological literature surprisingly little is known about the development of partnerships of detainees during and after detention. In particular, it is unknown to what extent existing differences in the relationship quality at the start of the detention period continue. Therefore, this study examined how the partnerships of detainees developed by using data from the Prison Project. This is a longitudinal study in which 747 detainees with a partner were interviewed at various moments during detention and six months after detention. The results show that bad partnerships at the beginning of detention remain in general bad or end during and/or after detention, while the average to good relationships remain the same.


Anne Brons MSc
M.D. Brons, MSc is PhD student bij het Nederlands Interdisciplinair Demografisch Instituut (NIDI).

Prof. dr. Paul Nieuwbeerta
Prof. dr. P. Nieuwbeerta is hoogleraar Criminologie bij het Instituut voor Strafrecht & Criminologie van de Universiteit Leiden.

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

Access_open De daling in jeugddelinquentie: minder risico, meer bescherming?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1 2018
Trefwoorden crime drop, juvenile delinquency, risk and protective factors, ecological model, self-reported delinquency
Auteurs Dr. André van der Laan, Dr. Josja Rokven, Dr. Gijs Weijters e.a.
SamenvattingAuteursinformatie

    According to police statistics, juvenile crime in the Netherlands decreased annually since 2007. Explanations for the crime drop primarily focused on single macro explanations, such as increasing prosperity, focused policing or decreasing alcohol use. The prevalence of self-reported delinquency also dropped in the period 2005 till 2015. In three consecutive cohorts of the Youth Delinquency Survey (YDS; 2005, 2010, 2015) changes in exposure to risk and protective factors offered potential explanations for the drop in juvenile delinquency. Compared to previous cohorts, juveniles in the 2015-cohort were less exposed to risk factors like alcohol use and delinquent friends, and more exposed to protective factors like perceived emotional support, solicitation and monitoring by parents. Amongst serious delinquents, however, the exposure to individual risk behavior and delinquent friends was stable over time. Serious delinquents also showed stability over the cohorts in frequency and seriousness of offenses. The vulnerability for risk and protective factors was consistent amongst the three cohorts, regardless the seriousness of delinquency. Changing social cultural attitudes towards risk behavior, e.g. delinquency, could be an additional explanation for the juvenile crime drop. Implications for theory and policy are discussed.


Dr. André van der Laan
Dr. A.M. van der Laan is senioronderzoeker en plaatsvervangend afdelingshoofd bij het Wetenschappelijk Onderzoek- en Documentatiecentrum (WODC) van het ministerie van Justitie en Veiligheid.

Dr. Josja Rokven
Dr. J. Rokven is onderzoeker bij het Wetenschappelijk Onderzoek- en Documentatiecentrum (WODC) van het ministerie van Justitie en Veiligheid.

Dr. Gijs Weijters
Dr. G. Weijters is senioronderzoeker bij het Wetenschappelijk Onderzoek- en Documentatiecentrum (WODC) van het ministerie van Justitie en Veiligheid.

Dr. Marinus Beerthuizen
Dr. M.G.C.J. Beerthuizen is onderzoeker bij het Wetenschappelijk Onderzoek- en Documentatiecentrum (WODC) van het ministerie van Justitie en Veiligheid.
Artikel

Vechten op afspraak

Verklaringen voor georganiseerde vormen van groepsgeweld

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2017
Trefwoorden collective, violence, hooliganism, organized confrontations, group dynamics
Auteurs Drs. Tom van Ham
SamenvattingAuteursinformatie

    Collective violence around football has been a topic of research since the 1980s. In the Netherlands, in recent decades the size and severity of this problem have decreased sharply and the number of incidents has stabilized due to measures taken. At the same time, these measures have resulted in an increase of football-related incidents outside stadiums and on other days than match days. Confrontations based upon prior mutual agreements, so-called arranged confrontations, are an example of this. Based on multiple research methods, in this article the underlying causes of arranged confrontations and processes influencing individual participation are addressed. Results show that this type of collective violence and partaking in it has various causes and explanations. These fit with extant research literature in the area of group crime and collective violence and are incorporated in the recently developed initiation-escalation model.


Drs. Tom van Ham
Drs. T. van Ham is onderzoeker bij Bureau Beke en als buitenpromovendus verbonden aan de Universiteit Leiden.
Artikel

Criminaliteitsconcentraties en microplaatsen

Een toets van de ‘law of crime concentration at places’

Tijdschrift Tijdschrift voor Criminologie, Aflevering 3 2017
Trefwoorden law of crime concentration, micro places, crime concentrations, criminology of place
Auteurs Prof. dr. Wim Hardyns, Thom Snaphaan MSc. en Prof. dr. Lieven J.R. Pauwels
SamenvattingAuteursinformatie

    The spatial concentrations of crime are increasingly being studied in smaller units of analysis. This study examines the extent to which crime levels occur at micro places. Weisburd argues there is a law of crime concentration at micro places. His so-called ‘law of crime concentration at places’ states that within an urban context a limited bandwidth of micro places is associated with a specific cumulative proportion of crime (e.g. 25 or 50 percent of crime in a city). In this study the authors investigate Weisburd’s statement in regard to crime concentrations in two large Belgian cities. Official police crime statistics (PCS) for the period 2004-2012 were used. There are several ways to define and operationalize a micro place. Therefore, this study also examines whether the unit of analysis has implications for the concentration of crime at places. Analyses were conducted at two small levels, namely: grid level (using 200 meters by 200 meters grid cells) and the level of the statistical sector (more or less similar to four digit postcode areas or CBS-neighborhoods). This study shows that the concentrations of crime at grid cells are in line with the findings of Weisburd. This trend is consistent in time, for the types of crime as well as for the two cities involved. The concentrations of crime at the level of the statistical sector appear to be less strong and therefore are not in line with the law of crime concentration at places.


Prof. dr. Wim Hardyns
Prof. dr. W. Hardyns is professor aan de Vakgroep Criminologie, Strafrecht en Sociaal Recht van de Universiteit Gent. Als lid van het Institute for International Research on Criminal Policy (IRCP) bestudeert hij de ruimtelijke context van criminele fenomenen en is hij gespecialiseerd in big data toepassingen in het veiligheidsdomein.

Thom Snaphaan MSc.
J.A.J.M. Snaphaan, Msc behaalde zijn diploma van Master in de Veiligheidswetenschappen aan de Universiteit Antwerpen.

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

Kartels ontsluierd: heimelijkheid, vertrouwen en sociale inbedding

Hoe kartels erin slagen verborgen te blijven

Tijdschrift Tijdschrift voor Criminologie, Aflevering 3 2017
Trefwoorden social embeddedness of crime, corporate crime, white-collar crime, illegal networks, business cartels
Auteurs Jelle David Jaspers MSc
SamenvattingAuteursinformatie

    In this article notions from literature on covert and illegal networks are applied to business cartels. Comparable to most criminal networks, cartel participants need to communicate in order to coordinate their activities, whilst under the risk of getting caught. Previous studies however show cartels can remain hidden from outsiders for long periods of time. Based on an analysis of fourteen Dutch cartel cases, this article addresses the question how cartels can remain hidden from outsiders for long periods of time. The analysis shows cartel participants communicate predominantly centralized and frequent. Moreover, the results show that not concealment but social embeddedness provides a strong explanation for the longevity of secrecy regarding cartels.


Jelle David Jaspers MSc
J.D. Jaspers, MSc is promovendus bij de Erasmus School of Law van de Erasmus Universiteit Rotterdam.
Artikel

Het besloten club- en het ingezetenencriterium voor coffeeshops

Een natuurlijk experiment

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1-2 2017
Trefwoorden natural experiment, realist evaluation, policy evaluation, causality
Auteurs Dr. Marianne van Ooyen-Houben, Drs. Bert Bieleman, Prof. dr. Dirk Korf e.a.
SamenvattingAuteursinformatie

    The retail sale of cannabis in coffee shops is tolerated in the Netherlands, provided that certain criteria are met. Two criteria were added in 2012: the private club and the residence criterion. The plan was to implement them first in the southern provinces and later in the other provinces. This created an opportunity for a natural experiment. In an experimental group of seven municipalities in the south and a matched comparison group of municipalities in the other part of the country pre- and post-measurements were conducted. The size of the drug tourism, the number of visits to coffee shops, the illegal cannabis consumer market and the nuisance experienced in the direct vicinity of coffee shops was assessed. Robust changes occurred in the experimental group after implementation of the new criteria. Initial differences between the groups and variation in local implementation caused doubts about drawing causal conclusions. This article analyzes whether such conclusions can be drawn. We conclude that due to the broad design of the research it appears that the observed changes can be attributed to the new criteria despite the methodological shortcomings in the study.


Dr. Marianne van Ooyen-Houben
Dr. M.M.J. van Ooyen-Houben is wetenschappelijk medewerker bij het WODC, afdeling Extern Wetenschappelijke Betrekkingen, van het ministerie van Veiligheid en Justitie.

Drs. Bert Bieleman
Drs. B. Bieleman is directeur van Bureau Intraval, gevestigd in Groningen en Rotterdam.

Prof. dr. Dirk Korf
Prof. dr. D.J. Korf is hoogleraar criminologie aan het Bonger Instituut voor Criminologie van de Universiteit van Amsterdam.

Prof. dr. Kristof De Witte
Prof. dr. K. De Witte is bijzonder hoogleraar aan Maastricht University, Top Institute for Evidence Based Education Research, en universitair hoofddocent aan de Faculty of Business and Economics van de Katholieke Universiteit Leuven.
Artikel

Onderzoeksnotitie: Recidive na een korte of langere periode in detentie

Tijdschrift Tijdschrift voor Criminologie, Aflevering 1-2 2017
Trefwoorden imprisonment, dose-response relationship, recidivism, propensity score methodology
Auteurs Dr. Hilde Wermink, Dr. Anke Ramakers, Prof. dr. Paul Nieuwbeerta e.a.
SamenvattingAuteursinformatie

    This paper examines the relationship between imprisonment length and registered recidivism. The data come from a unique longitudinal and nationwide study of Dutch male prisoners, serving an average of 4.1 months of confinement (N=1,467). Ideally an experimental design would be appropriate to examine the influence of different sentence lengths on recidivism. In order to approximate such a design using observational data, we adopt a propensity score methodology to control for selection bias in the dose-response relationship. Using a six-month follow-up, we do not find significant differences in post-release recidivism between men who spent shorter or longer periods of time in confinement. We discuss the pros and cons of the methodology applied as well as potential implications of the findings.


Dr. Hilde Wermink
Dr. H.T. Wermink is universitair docent aan de afdeling Criminologie van de Universiteit Leiden.

Dr. Anke Ramakers
Dr. A.A.T. Ramakers is universitair docent aan de afdeling Criminologie van de Universiteit Leiden.

Prof. dr. Paul Nieuwbeerta
Prof. dr. P. Nieuwbeerta is hoogleraar aan de afdeling Criminologie van de Universiteit Leiden.

Prof. dr. Jan de Keijser
Prof. dr. J.W. de Keijser is hoogleraar aan de afdeling Criminologie van de Universiteit Leiden.

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

De discretionaire ruimte bij het gebruik van geweld: hoe kleiner, hoe beter?

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2016
Trefwoorden discretionary space, use of force, Training, Survey, hypothetical cases
Auteurs Jannie Noppe
SamenvattingAuteursinformatie

    First line police officers need a certain amount of discretion as they have to deal with various and complex situations on a daily basis. In this article the author examines the extent to which police officers have room for discretion in their use of force. We start from Mastrofski’s proposition that in case of decisions to use deadly force (use of firearm) police officers’ discretionary space must be restricted as much as possible. In case of less intrusive use of force, police officers may have more room for discretion. We used data from a small survey in three local police forces in Belgium to examine whether police officers have similar opinions on the decision to use their firearm – in comparison with the decision to use lower levels of force (non-firearm/non-lethal). Furthermore, we compare police officers who are highly trained in the use of force, with less trained police officers. Our results indicate that police officers are indeed more univocal when it comes to decisions to use their firearm, especially in case of more trained police officers.


Jannie Noppe
J. Noppe is doctoraatstudente bij de onderzoeksgroep IRCP, Vakgroep Criminologie, Strafrecht en Sociaal Recht, Universiteit Gent.
Artikel

Street-level bureaucrats in de justitiële jeugdinrichting?

Hoe groepsleiders hun discretionaire ruimte benutten

Tijdschrift Tijdschrift voor Criminologie, Aflevering 4 2016
Trefwoorden street-level bureaucracy, juvenile correctional facility, group workers, discretion
Auteurs Dr. Marie-José Geenen, Prof. dr. Emile Kolthoff, Drs. Robin Christiaan van Halderen e.a.
SamenvattingAuteursinformatie

    Although group workers in juvenile correctional facilities (JCFs) are restricted in their actions by many rules and regulations, they still have the opportunity for tailor-made actions. Based on Lipsky’s (2010) theory of ‘street-level bureaucracy’ this article explains what this discretion means for group workers in JCFs and how they deal with it. Based on 24 interviews with group workers, this article outlines how they exercise discretion in a context where group dynamics and dealing with emotions affect their actions to an important degree. In addition, this article describes how group workers deal with dilemmas they encounter.


Dr. Marie-José Geenen
Dr. M.-J. Geenen is docent en supervisor bij het Instituut voor Social Work en onderzoeker bij het lectoraat Werken in Justitieel Kader van de Hogeschool Utrecht.

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.

Drs. Robin Christiaan van Halderen
Drs. R.C. van Halderen is onderzoeker bij het Expertisecentrum Veiligheid van Avans Hogeschool in Den Bosch.

Drs. Jeanet de Jong
Drs. J. de Jong is docent bij de Academie Sociale Studies in Breda en onderzoeker bij het Expertisecentrum Veiligheid van Avans Hogeschool in Den Bosch.
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