What is the minimum number of ridge characteristics necessary before two fingerprints can be identified as the same?

The assertion that there is no minimum number of ridge characteristics necessary for two fingerprints to be identified as the same is grounded in the principles of forensic fingerprint analysis. Each fingerprint is unique, and identifications are based on the overall pattern and relationships among various characteristics, rather than a strict numerical threshold.

Fingerprint analysts consider various factors including the quality of the prints, the uniqueness of the identified characteristics, and the context of the print, rather than a predefined count. This allows for a more nuanced evaluation of the prints, as a small number of strong, distinctive features can be more compelling for identification than a larger number of less distinctive features.

Therefore, forensic experts rely on the presence of sufficient unique details that are consistent in both prints, and this can vary from case to case. This approach supports the idea that while many characteristics may affirm a match, there is no absolute minimum required for a definitive conclusion in identification.