Ieke de Vries
Assistant professor
- Name
- Dr. I. de Vries
- Telephone
- +31 71 527 2727
- i.de.vries@law.leidenuniv.nl
- ORCID iD
- 0000-0002-9306-7620
Ieke de Vries is an Assistant Professor of Criminology at the Institute of Criminal Law and Criminology.
General
Ieke de Vries is an Assistant Professor of Criminology at the Institute of Criminal Law and Criminology. She received her Ph.D. at Northeastern University (Boston, Massachusetts) and was previously appointed as an Assistant Professor in the College of Criminology and Criminal Justice at Florida State University (Tallahassee, Florida).
Research
Ieke is a criminologist with expertise in quantitative and qualitative research methods to study human trafficking and other hidden or hard-to-observe crime types. Her research focuses on the Netherlands and the United States. In her doctoral work, Ieke de Vries utilized unique online and administrative data to identify the spatial and social mechanisms that drive commercial sex and sex trafficking in illicit massage businesses in the U.S. Specifically, she examined the geographic and spatial features of census tracts and cities that have illicit massage businesses, analyzed the mobility of clientele through a spatial network approach, and evaluated the impact of police shutdowns on the overall geographic distribution of illicit massage businesses. Her research was awarded a Research Fellowship from the National Institute of Justice in the U.S.
Her research agenda focuses on a set of related themes, including law enforcement responses to human trafficking and other complex crime types, risk factors for (repeat) victimization, and the broader socio-ecological context of crime and victimization. To investigate these themes, she employs quantitative, including computational, and qualitative methods. Examples of these methods are qualitative interviews, digital research methods, regression analyses, social network analyses, spatial analyses, and machine learning. The results of her research provide a scientific foundation for tackling crime types such as human trafficking.
Ieke’s research has repeatedly received external funding, including grants by the Leiden University Fund, a starting grant, and in 2023 her research about the role of context in the sexual exploitation of children and young adults was awarded a VENI-grant by the Dutch Research Council (NWO). Her VENI-research utilizes unique and longitudinal data about people and their socio-ecological contexts and innovative methods to develop new insights into victimization and risk contagion
Teaching
Within the bachelor's program Ieke de Vries coordinates the courses Human Trafficking and Environmental Criminology. She also supervises master's theses and regularly offers internships and/or research positions for ongoing projects.
Assistant professor
- Faculteit Rechtsgeleerdheid
- Instituut voor Strafrecht & Criminologie
- Criminologie
- Bhimani S., Vries I. de, Sneesby A., Farrell A. & Maass K.L. (2025), The ties that link us: uncovering the socio-technic connections of labor trafficking networks, Production and Operations Management : .
- Meeteren M. van, Woude M.A.H. van der, Mutsaers P., Vries I. de, Hageman N., Leun J. van der & Terlouw A. (2024), Etnisch profileren door de politie; een systematische literatuurstudie toegespitst op de Nederlandse context: Eindrapportage. WODC Rapport no. 3239. Den Haag: WODC.
- Vries I. de, Baglivio M. & Reid J.A. (2024), Examining individual and contextual correlates of victimization for juvenile human trafficking in Florida, Journal of Interpersonal Violence 39(23-24): 4748-4771.
- Vries I. de & Bemmel S. van (2024), Contextuele kwetsbaarheid in beeld: Een onderzoek naar de rol van de sociale leefomgeving in de seksuele uitbuiting van minderjarigen (Universiteit Leiden). [other].
- Donninger D.C., Vries I. de, Ras I.A. & Meeteren M. van (2024), De beeldvorming van mensenhandel in het Nederlandse politieke debat, Tijdschrift voor Criminologie 66(1): 46-70.
- Vries I. de & Davies T. (2024), Understanding the role of street network configurations in the placement of illegitimately operating facilities, Criminology 62(3): 412-453.
- Vries I. de & Cockbain E. (2024), Governing through indicators: structural biases and empirical challenges in indicator-based approaches to anti-trafficking policy, practice, and research. In: Faulkner E.A. (Ed.), Modern slavery in global context: human rights, law and society. Bristol, UK: Bristol University Press. 145-167.
- Meeteren M.J. van & Vries I. de (2023), De noodzaak van een holistische benadering bij de aanpak van arbeidsuitbuiting. In: Erkens M.Y.H.G., Groot C. de & Oostrum C.H.A. van (Eds.), Panta Rhei: recht en duurzaamheid. Den Haag: Boom juridisch. 81-96.
- Vries I. de & Farrell A. (2023), Explaining the Use of Traditional Law Enforcement Responses to Human Trafficking Concerns in Illicit Massage Businesses, Justice Quarterly 40(3): 337-362.
- Vries I. de (2023), Examining the Geography of Illicit Massage Businesses Hosting Commercial Sex and Sex Trafficking in the United States: The Role of Census Tract and City-Level Factors, Crime & Delinquency 69(11): 2218-2242.
- Vries I. de (2023), A Network Approach to Examine Neighborhood Interdependence Through the Target Selection of Repeat Buyers of Commercial Sex in the United States, Deviant Behavior 44(6): 876-899.
- Vries I. de, Reid J.A. & Farrell A. (2023), From responding to uncertainties and ambiguities to more constructive and inclusive debates on commercial sex and sex trafficking, Victims and Offenders 18(3): 586-606.
- Vries I. de & Radford J. (2022), Identifying online risk markers of hard-to-observe crimes through semi-inductive triangulation: the case of human trafficking in the United States, British Journal of Criminology 62(3): 639-658.
- Vries I. de, Abeyta S., Lockwood S., Cuevas C.A. & Rothman E. (2022), A Network Approach to Examining Co-occurring Victimization and Perpetration in Dating Abuse Among a Nationally Representative Sample of US Adolescents, Journal of Adolescent Health 70(6): 934-941.
- Sentse M., Vries I. de & Nieuwbeerta P. (2022), A dyadic analysis of social network stability before and after incarceration, Journal of Criminal Justice 82: 1-10 (101994).
- Kafafian M., Vries I. de, Farrell A., Goldfarb S. & Bouchard E. (2021), Understanding factors associated with re-referral of youth for commercial sexual exploitation, Child Abuse & Neglect 117: 105092.
- Vries I. de, Farrell A., Bouché V. & Wittmer-Wolfe D.E. (2020), Crime frames and gender differences in the activation of crime concern and crime responses, Journal of Criminal Justice 66: 101651.
- Vries I. de, Jose M.A. & Farrell A. (2020), It’s your business: the role of the private sector in human trafficking. In: Winterdyk J. & Jones J. (Eds.), The Palgrave International Handbook of Human Trafficking. Cham: Palgrave Macmillan. 745-762.
- Farrell A. & Vries I. de (2020), Measuring the nature and prevalence of human trafficking. In: Winterdyk J. & Jones J. (Eds.), The Palgrave International Handbook of Human Trafficking. Cham: Palgrave Macmillan. 147-162.
- Farrell A., Bright K., Vries I. de, Pfeffer R. & Dank M. (2020), Policing labor trafficking in the United States, Trends in Organized Crime 23(1): 36-56.
- Vries I. de, Kafafian M., Goggin K., Bouchard E., Goldfarb S. & Farrell A. (2020), Enhancing the identification of commercial sexual exploitation among a population of high-risk youths using predictive regularization models, Child Maltreatment 25(3): 318-327.
- Vries I. de & Goggin K.E. (2020), The impact of childhood abuse on the commercial sexual exploitation of youth: a systematic review and meta-analysis, Trauma, Violence, and Abuse 21(5): 886-903.
- Vries I. de (2019), Connected to Crime: an exploration of the nesting of labour trafficking and exploitation in legitimate markets, British Journal of Criminology 59(1): 209-230.
- Vries I. de, Nickerson C., Farrell A., Wittmer-Wolfe D.E. & Bouché V. (2019), Anti-immigration sentiment and public opinion on human trafficking, Crime, Law and Social Change 72(1): 125-143.
- Farrell A., Dank M., Vries I. de, Kafafian M., Hughes A. & Lockwood S. (2019), Failing victims? Challenges of the police response to human trafficking, Criminology & Public Policy 18(3): 649-673.
- Vries I. de & Farrell A. (2019), Sex work. In: Bernat F.P. & Frailing K. (Eds.), The Encyclopedia of Women and Crime. Chichester: John Wiley & Sons.
- Vries I. de & Farrell A. (2018), Labor trafficking victimizations: repeat victimization and polyvictimization, Psychology of Violence 8(5): 630-638.
- Vries I. de & Dettmeijer-Vermeulen C. (2015), Extremely wanted: human trafficking statistics: What to do with the hodgepodge of numbers?, Forum on Crime and Society 8: 15-36.
- Heijden P.G.M. van der, Vries I. de, Böhning D & Cruyff M. (2015), Estimating the size of hard-to-reach populations using capture-recapture methodology, with a discussion of the International Labour Organization’s global estimate of forced labour, Forum on Crime and Society 8: 109-136.
- Faculty Affiliate
- Consultant
- Editorial Board
- International Editorial Board Member
- Scientific Advisory Committee on the 2022 Edition of the Global Report on Trafficking in Persons