Who was the first to write that friction ridge skin is unique?

The assertion that friction ridge skin is unique is attributed to J.C.A. Mayer, who in the 1780s made significant contributions to the understanding of fingerprints and their distinctiveness. Mayer was among the first to recognize that the patterns formed by the ridges on fingers, which are known as friction ridges, are unique to each individual. His work laid the foundation for later advancements in the study of fingerprints, influencing both forensic science and legal practices.

Recognizing the uniqueness of friction ridge skin has been crucial in forensic investigations, as it allows for the identification of individuals based on their fingerprints. This concept is the cornerstone of fingerprint analysis and has been validated through extensive research in the field of dermatoglyphics. Mayer's identification of uniqueness stands as a pivotal point in the history of forensic science, marking the beginning of a deeper inquiry into the significance of fingerprints in personal identification.