A large panel, approximately A1 in size, used as a reference in a Dutch police office. Fingerprints have long been used as remarkably trustworthy biomarkers through a process known as dactyloscopy. These ridges begin forming early in fetal development and are a largely hereditary characteristic. Despite their incredible variation between individuals and even the same individual’s hands, the patterns displayed are nearly always found and form the basis for dactyloscopy.