Coppock (forensic science, Eastern Washington U.) is also a lead specialist with a county-level forensic unit and a certified latent print examiner, accomplishments he puts to good use in his descriptions of the history of fingerprint identification, friction skin, friction skin classification, exemplar fingerprint impressions, latent fingerprint development and recovery, special development procedures and conditions, quality variation, identification, fabrications and errors, evidence, photography, computerized databases, scientific comparative evidence, legal courts and
dactyloscopy, and the training and protocol needed for 10-print and latent print examiners.