Research on detection techniques for pattern modifications of playing cards used in illegal gambling operations Posted on October 11, 2023 By Becky Carter Joong Lee PhD, Hongseok Kim MSc, Tae-Yi Kang MSc, Simyub Yook MSc J Forensic Sci; 68(5); 2023 Access article Crime Scene Investigation and Reconstruction, Photography, Video, and Imaging Technology, Questioned Documents