Norman Marin worked for the NYC Office of the Chief Medical Examiner from 2001-2012, where he began with DNA extraction and quantification before transferring to the Special Investigation Unit, where he worked on crime reconstruction issues involving bloodstain pattern analysis, bullet trajectory, evidence examinations, forensic photography, and the identification of latent blood through chemical enhancements. A graduate of the John Jay College, Marin now teaches at Pace University at the Dyson College of Arts and Sciences, Forensic Science program, where he teaches digital photography, among other forensic disciplines.