Welcome to the Statewide Fingerprint Imaging System

Right Column

How Does an AFIS Work?

Fingerprint Patterns

Fingerprint pattern classifications are used to subdivide large databases in traditional law enforcement AFIS applications.


Minutia matching

Minutia matching is used to compare a Reference Print to selected Candidate Prints of a particular pattern type. A statistical correlation is computed between the Reference Print and each Candidate Print. A "Match" is declared when the statistical correlation score for one of the Candidate Prints exceeds a pre-set threshold.