In recent years, exposés on the trafficking of women have caught the public’s attention in China. However, due to data scarcity, the scope and nature of such criminal activity are not well understood. The authors of this study provide a new angle in the analysis of human trafficking by digitizing and analyzing court sentencing documents on trafficking in China during 2014–2015. Through mapping court data to geographic information and performing network analysis, the study presented a comprehensive picture of intra-provincial, inter-provincial, and international trafficking patterns. The data showed that international trafficking has become the largest category in the trafficking of women, and victims were typically young women in their 20s originating from Vietnam, Myanmar, and North Korea who were sold into central provinces. Domestically, inter-provincial trafficking outnumbers intra-provincial cases. Across provincial borders, women were trafficked from southwest to central provinces. Intra-provincial trafficking was concentrated in four provinces: Henan, Anhui, Shandong, and Hebei.

Tianji Cai is an Associate Professor at University of Macau. He received his PhD degree at University of North Carolina at Chapel Hill in 2010. His research interests concentrate on new forms of data and new methods of analysis. Reflecting on his broad intellectual pursuits, his research topics are diverse, ranging from methodological, such as quantitative methods and data mining, to substantive ones, such as gene-environmental interplay, adolescent health behaviors and crimes. He has published widely in leading international journals including American Sociological Review, American Journal of Sociology, Demography, Sociological Methodology, Sociological Methods & Research, Chinese Sociological Review, Child Abuse & Neglect, International Journal of Drug Policy and Lancet etc.