During the course of a normal criminal investigation, the District Attorney of a small, rural California county discovers bodycam forensic evidence that a sheriff’s deputy had used excessive force on a handcuffed prisoner. The force was not reported by the deputy in his incident reports. DrRon Martinelli and Modoc County (CA) District Attorney Jordan Funk discuss the forensic evidence in this case, why prosecutors use forensic police practices experts and the value these experts bring to criminal cases.