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Measuring the Nature and Prevalence of Human Trafficking

  • Amy FarrellEmail author
  • Ieke de Vries
Living reference work entry

Abstract

Interest in measuring the extent of human trafficking victimization has grown as the public has become more concerned about the problem. In the wake of legislation criminalizing human trafficking acts, mandating government responses, and allocating funding to anti-trafficking efforts, evidence about the nature and scale of the problem is needed to guide such efforts. Despite attempts to develop robust methodologies to study human trafficking, few reliable measures exist. This chapter examines the strengths and limitations of methodologies that have been employed to measure the scope and nature of human trafficking victimization globally and locally.

Keywords

Human trafficking Measurement Methodology Multiple system estimation Capture-recapture Estimation 

References

  1. Ball P, Asher J, Sulmont D and Manrique D (2003) How many Peruvians have died? Estimating the total number of victims killed or disappeared in the armed conflict between 1980 and 2000. Washington D.C.: Report to the Peruvian Commission for Truth and Justice.Google Scholar
  2. Bales, K (2017) Unlocking the statistics of slavery. Chance 30.3: 5–12.CrossRefGoogle Scholar
  3. Bales K, Hesketh O, and Silverman BW (2015) Modern slavery in the United Kingdom: How many victims? Significance June.Google Scholar
  4. Belser P, Michaëlle de Cock, and Farhad Mehran (2005) ILO Minimum Estimate of Forced Labour in the World. Geneva: ILO.Google Scholar
  5. Blevins, KR and Holt TJ (2009). Examining the virtual subculture of Johns. Journal of Contemporary Ethnography 38(5): 619–648.CrossRefGoogle Scholar
  6. Bishop YM, Fienberg SE, and Holland PW (2007) Discrete Multivariate Analysis: Theory and Applications. MIT Press.Google Scholar
  7. Berlusconi G, Calderoni F, Parolini N, Verani M, and Piccardi C (2016) Link prediction in criminal networks: A tool for criminal intelligence analysis. PloS one, 11(4): e0154244.CrossRefGoogle Scholar
  8. Bouche V and Crotty SM (2017) Estimating demand for illicit massage businesses in Houston, Texas. Journal of Human Trafficking, 1–19.Google Scholar
  9. Brunovskis A, and Surtees R (2015) Preventing human trafficking: Positive deviance methodology in practice. Fafo, Norway: Allkopi AS. https://nexushumantrafficking.files.wordpress.com/2015/02/preventing-ht-pd-in-practice-brunovskis-surtees-2015.pdf
  10. Campana P (2015) The structure of human trafficking: Lifting the bonnet on a Nigerian transnational network. British Journal of Criminology, 56(1): 68–86.CrossRefGoogle Scholar
  11. Chao A, Tsay PK, Lin SH, Shau WY and Chao DY (2001) The applications of capture-recapture models to epidemiological data. Statistics in medicine 20(20), 3123–3157.CrossRefGoogle Scholar
  12. Clawson, HJ, Layne, M and Small, K (2006) Estimating human trafficking into the United States: Development of a methodology. Phase one report. Fairfax, VA: ICF International.Google Scholar
  13. Cruyff M, van Dijk J, van der Heijden PGM (2017) The challenge of counting victims of human trafficking: Not on the record: A multiple systems estimation of the numbers of human trafficking victims in the Netherlands in 2010–2015 by year, age, gender and by of exploitation. Chance 30.3: 41–49.CrossRefGoogle Scholar
  14. Curtis R, Terry K, Dank M, Dombrowski K, Khan B, Muslim A, Labriola M, and Rempel M (2008) The commercial sexual exploitation of children in New York City. New York: Center for Court InnovationGoogle Scholar
  15. David, Fiona. 2017. Modern slavery – from statistics to prevention. CHANCE, 30: 54–60.CrossRefGoogle Scholar
  16. Dubrawski A, Miller K, Barnes M, Boecking B and Kennedy E (2015) Leveraging publicly available data to discern patterns of human-trafficking activity. Journal of Human Trafficking, 1(1), 65–85.CrossRefGoogle Scholar
  17. Farrell A, McDevitt J, Fahy S (2010) Where are all the victims? Understanding the determinants of official identification of human trafficking incidents. Criminology and Public Policy 9: 201–233CrossRefGoogle Scholar
  18. Farrell A, Owens C, McDevitt J (2014) New laws but few cases: understanding the challenges to the investigation and prosecution of human trafficking cases. Crime, Law, and Social Change 61: 139–168.CrossRefGoogle Scholar
  19. Farrell A, Pfeffer R (2014) Policing human trafficking: Cultural blinders and organizational barriers. The Annals of the American Academy of Political and Social Science 653: 46–64CrossRefGoogle Scholar
  20. Farrell A, Pfeffer R, Bright K (2016) Police perceptions of human trafficking. Journal of Crime and Justice 38: 315–333CrossRefGoogle Scholar
  21. Farrell A and Reichert J (2017) Using U.S. law enforcement data: Promise and limits in measuring human trafficking. Journal of Human Trafficking 3: 39–60.CrossRefGoogle Scholar
  22. Federal Bureau of Investigation (2014) Human trafficking in the Uniform Crime Reporting Program. https://ucr.fbi.gov/human-trafficking.Google Scholar
  23. Gallagher A (2017) What’s wrong with the Global Slavery Index. Anti-trafficking Review 8: 90–112.Google Scholar
  24. Gallagher A, Holmes P (2008) Developing an effective criminal justice system response to human trafficking: Lessons from the front-line. International Criminal Justice Review 18: 318–343CrossRefGoogle Scholar
  25. Global Slavery Index (2016) Global Slavery Index: Appendices. Walk Free Foundation. https://www.globalslaveryindex.org/index/Google Scholar
  26. Government Accountability Office (GAO) (2006). Human Trafficking: Better Data, Strategy, Reporting Needed to Enhance U.S. Antitrafficking Efforts Abroad. Report to the Chairman, Committee on the Judiciary and the Chairman, Committee on International Relations, House of Representatives, Washington, D.C: United States Government Accountability Office.Google Scholar
  27. Heckathorn D (1997) Respondent-driven sampling: A new approach to the study of hidden populations. Social Problems 44: 174–199.CrossRefGoogle Scholar
  28. Heckathorn D (2002) Respondent driven sampling II: Deriving valid population estimates from chain referral samples of hidden populations. Social Problems 49:11–34.CrossRefGoogle Scholar
  29. Holt TJ, Blevins KR, and Kuhns JB (2008) Examining the displacement practices of johns with on-line data. Journal of Criminal Justice 36(6): 522–528.CrossRefGoogle Scholar
  30. Holt TJ (2010) Exploring strategies for qualitative criminological and criminal justice inquiry using on-line data. Journal of Criminal Justice Education 21(4): 466–487.CrossRefGoogle Scholar
  31. Hopper E (2004) Under-identification of human trafficking victims in the United States. Journal of Social Work Research and Evaluation 5:125–136.Google Scholar
  32. Ibanez M, and Suthers DD (2014). Detection of domestic human trafficking indicators and movement trends using content available on open internet sources. In System Sciences (HICSS), 2014 47th Hawaii International Conference on (pp. 1556–1565). IEEE.Google Scholar
  33. International Labour Organization. (2016) ILO 2012 Global Estimate of Forced Labour and Forced Marriage: Methodology. Geneva: International Labour Organization.Google Scholar
  34. International Labour Organization. (2012) ILO 2012 Global Estimate of Forced Labour. Geneva: International Labour Organization.Google Scholar
  35. Konrad RA, Trapp AC, Palmbach TM., and Blom JS (2017) Overcoming human trafficking via operations research and analytics: Opportunities for methods, models, and applications. European Journal of Operational Research 259 (2): 733–745.CrossRefGoogle Scholar
  36. Kutnick B, Belser P and Danailova-Traino G (2007) Methodologies for global and national estimation of human trafficking victims: Current and future approaches. Geneva: International Labour Organization.Google Scholar
  37. Latonero, M., Berhane, G., Hernandez, A., Mohebi, T., & Movius, L. (2011). Human trafficking online: The role of social networking sites and online classifieds (Vol. 26; Tech. Rep.). Los Angeles, CA: Center on Communication Leadership and PolicyGoogle Scholar
  38. Levi M, and Wall DS (2004) Technologies, security, and privacy in the post-9/11 European information society. Journal of Law and Society 31(2): 194–220.CrossRefGoogle Scholar
  39. Liben-Nowell D, and Kleinberg J (2007) The link-prediction problem for social networks. Journal of the Association for Information Science and Technology, 58(7), 1019–1031.Google Scholar
  40. Lum K, Megan P, Tamy G, and Patrick Ball (2010) Measuring elusive populations with bayesian model averaging for multiple systems estimation: A case study on lethal violations in casanare, 1998-2007, Statistics, Politics and Policy 1(1) 29.Google Scholar
  41. Macy R and Graham L (2012) Identifying domestic and international sex trafficking victims during human service provision. Trauma, Violence and Abuse 13: 59–76.CrossRefGoogle Scholar
  42. Malm A, Bichler G, and Van De Walle S (2010) Comparing the ties that bind criminal networks: Is blood thicker than water? Security Journal 23(1): 52–74.CrossRefGoogle Scholar
  43. Manrique-Vallier D, Price ME, and Gohdes A (2013) Multiple System Estimation techniques for estimating causalities in armed conflict. In Counting Civilian Causalities.Google Scholar
  44. Mendel, J. and Sharapov, K (2016). Human trafficking and online networks: Policy, analysis, and ignorance. Antipode, 48(3): 665–684.CrossRefGoogle Scholar
  45. Merry S (2016) The seductions of quantification: Measuring gender violence, human rights and sex trafficking. Chicago, IL: University of Chicago Press.CrossRefGoogle Scholar
  46. Munro V (2008) Of rights and rhetoric: Discourses of degradation and exploitation in the context of sex trafficking, Journal of Law and Society, 35: 240–264.CrossRefGoogle Scholar
  47. National Conference of State Legislatures (n.d.) Human trafficking state laws. http://www.ncsl.org/research/civil-and-criminal-justice/human-trafficking-laws.aspx
  48. Newman, GR and Clarke RV (2003). Superhighway robbery: Prevention e-commerce crime. Cullompton, UK; Willian.Google Scholar
  49. Newton P, Mulcahy T, Martin S (2008) Finding victims of human trafficking. Bethesda: National Opinion Research Center.CrossRefGoogle Scholar
  50. Owens C, Dank M, Breaux J, Banuelos I, Farrell A, Pfeffer P, Bright K, Heitsmith R and McDevitt J (2014) Understanding the Organization, Operation, and Victimization Process of Labor Trafficking in the United States. Washington, DC: United States Department of Justice, National Institute of Justice (NCJ-248461).Google Scholar
  51. Paolo C, Federico V (2016) Exploitation in human trafficking and smuggling. European Journal on Criminal Policy and Research 22(1):89–105.Google Scholar
  52. Portnoff RS, Huang DY, Doerfler P, Afroz S and McCoy D. (2017) Backpage and bitcoin: Uncovering human traffickers. In Proceedings of the 23rd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (pp. 1595–1604). ACM.Google Scholar
  53. Richard AO (1999) International trafficking in women to the US: A contemporary manifestation of slavery and organized crime. Washington, DC: Center for the Study of Intelligence.Google Scholar
  54. Smith CM and Papachristos AV (2016) Trust thy crooked neighbor: multiplexity in Chicago organized crime networks. American Sociological Review 81(4): 644–667.CrossRefGoogle Scholar
  55. Steinfatt T and Baker S (2011) Measuring the extent of sex trafficking in Cambodia, 2008. Bangkok, Thailand: United Nations Interagency Project on Human Trafficking.Google Scholar
  56. Sundararajan, A (2016) The sharing economy: the end of employment and the rise of crowd-based capitalism. Cambridge, MA: The MIT Press.Google Scholar
  57. Thakor M and Boyd D (2013) Networked trafficking: reflections on technology and the anti-trafficking movement. Dialectical Anthropology 37(2): 277–290.CrossRefGoogle Scholar
  58. Tyldum G and Brunovskis A (2005) Describing the unobserved: Methodological challenges in empirical studies on human trafficking. International Migration 43 (1–2): 17–34.CrossRefGoogle Scholar
  59. United Nations Office on Drugs and Crime (2016) Global Report on Trafficking in Persons. United National Office of Drugs and Crime.Google Scholar
  60. Verhoeven M and Van Gestel B (2011) Human trafficking and criminal investigation strategies in the Amsterdam Red Light District. Trends in Organized Crime 14: 148–164CrossRefGoogle Scholar
  61. Van der Heijden PGM, Whittaker J, Cruyff M, Bakker B, Van der Vliet R (2012). People born in the Middle East but residing in the Netherlands: Invariant population size estimates and the role of active and passive covariates. The Annals of Applied Statistics 6(3):831–52.CrossRefGoogle Scholar
  62. Van der Heijden PGM, De Vries I, Bӧhning D and 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. UN Forum on Crime and Society 8:109–136.Google Scholar
  63. Van der Watt M, van der Westhuizen A (2017) (Re)configuring the criminal justice response to human trafficking: a complex-systems perspective, Police Practice and Research 18: 218–229CrossRefGoogle Scholar
  64. Wall, D. (2007). Cybercrime: The transformation of crime in the information age (Vol. 4). Polity.Google Scholar
  65. Weitzer R (2014) New Directions in Research on Human Trafficking. The ANNALS of the American Academy of Political and Social Science, 653(1): 6–24.CrossRefGoogle Scholar
  66. Williams M, and Cheal B (2002) Can we measure homelessness? A critical evaluation of the method of “capture–recapture.” International Journal of Social Research Methodology 5 (4): 313–331.CrossRefGoogle Scholar
  67. Wilson DG, Walsh WF Kleuber S (2006) Trafficking in human beings: Training and services among U.S. law enforcement agencies. Police Practices and Research 7: 149–160.Google Scholar
  68. Yar M (2005) The Novelty of ‘Cybercrime’ An Assessment in Light of Routine Activity Theory. European Journal of Criminology 2(4): 407–427.CrossRefGoogle Scholar
  69. Zhang SX (2009) Beyond the ‘Natasha’story–a review and critique of current research on sex trafficking. Global Crime 10 (3): 178–195.CrossRefGoogle Scholar
  70. Zhang SX (2012) Measuring labor trafficking: A research note. Crime, Law and Social Change 58: 469–482.CrossRefGoogle Scholar
  71. Zhang SX, Spiller MW, Finch BK, and Qin Y (2014) Estimating labor trafficking among unauthorized migrant workers in San Diego. The Annals of the American Academy of Political and Social Science 653 (1): 65–86.CrossRefGoogle Scholar

Copyright information

© The Author(s), under exclusive license to Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Northeastern UniversityBostonUSA

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