Who performed the comparison tests involving palmar flexion creases that were reported in 1991?

The comparison tests involving palmar flexion creases reported in 1991 were performed by Scotland Yard. This is significant because Scotland Yard, as the investigative arm of the Metropolitan Police Service in London, has long been involved in developing and validating forensic techniques, particularly in the realm of fingerprint analysis. Their studies on palmar flexion creases contributed to the understanding of how these unique skin patterns can be utilized in identifying individuals and enhancing methodologies in fingerprint examination. By establishing procedures and standards in this area, Scotland Yard played a pivotal role in advancing forensic science, particularly regarding the use of such creases in latent print examination.