Biometric Training

Recording Friction Ridges 

Friction Ridge Identification is the method of identification using the impressions made by the minute ridge formations found on the palmar surface of the hand. No two persons have exactly the same arrangement of friction ridge detail.

For more information, visit the Recording Friction Ridges (e-Learning Module) website.

Biometric Training Guides and Documents 

Agencies can use this best practices guide as a reference tool for correctly capturing palm print images.

To increase accuracy, please review this document when capturing and submitting palm prints to the FBI.