Griaule Biometrics

Problem: Identification process fails most of (or all) the time.

Solution: Most identification errors are caused by bad fingerprint enrollments. Some tips for a good fingerprint enrollment:

1. Use the index finger whenever possible;
2. Check if the finger has any scars or is wounded in some way. Choose another finger if necessary (preferably the middle one, otherwise the ring finger);
3. Ask the person to place the center of his/her finger in the center of the fingerprint reader and apply some pressure;
4. Depending on the fingerprint reader, the person may have to keep the finger upon the reader from 1 to 3 seconds;
5. Make sure that the enrollment was good by asking the person to put his/her finger again in the fingerprint reader, and then try to identify him/her.