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 & Criminology at Leiden University and a member of the Examination Committee of the Faculty of Law. Between 2015 and 2020, she earned her Ph.D. at Northeastern University in Boston, where she conducted research on victimization and the approach to human trafficking. Before her current position, she was an Assistant Professor at Florida State University.
Ieke serves as an ad-hoc peer reviewer for national and international scientific journals and is a member of various Editorial Boards. She has presented her research at international conferences and is frequently invited to speak at policy and practice-oriented organizations.
Research
Ieke’s research focuses on victimization, vulnerability, human trafficking, and hidden forms of criminality. Her dissertation analyzed illegal massage parlors in three U.S. states, examining locations, cross-neighborhood networks, and policing strategies. This project, funded by the National Institute of Justice, combined criminological theories with unique datasets.
Her current research explores social networks, vulnerability, and emerging criminal practices. She applies advanced methods such as social network analysis, digital research techniques, and machine learning. Her research leverages unique data sources, including Chat met Fier, police records, and CBS data. She collaborates with U.S.-based institutions, such as the Children’s Advocacy Center in Massachusetts, and research organizations in Florida.
Her work is externally funded by grants, including the Leids Universitair Fonds, a Starter Grant (2024), and an NWO VENI grant (2023). Her VENI project examines how the living environment influences sexual exploitation victimization, offering new insights through longitudinal data.
Education
Ieke coordinates the Human Trafficking course, supervises master’s theses, and offers internship and research positions.
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
- Editorial Board
- International Editorial Board Member
- Scientific Advisory Committee on the 2022 Edition of the Global Report on Trafficking in Persons