Frank Tripp
Detective Sergeant Francis "Frank" Tripp is a fictional character on the CBS crime drama CSI: Miami, portrayed by Rex Linn.
Background
Detective Sergeant Frank Tripp (Rex Linn) in the Homicide division of the Miami-Dade Police Department in CSI: Miami, (season 5-10; recurring seasons 1-4), is a homicide detective who regularly accompanies the team to the crime scenes. He joined the police force prior to applicants needing an undergraduate degree; although he is not as highly educated as the rest of the team, his knowledge and "street smarts" about the local area come in handy during investigations. He has a gruff appreciation for the capabilities of the CSIs and their excellent results. Consequently, he has a good working relationship with all the CSIs, particularly Calleigh Duquesne. He is divorced, with three kids (episode 118, "Dispo Day"). Before the season six premiere, Tripp is promoted to sergeant and it's seen that he has shaved his head. After passing the sergeant's exam, Tripp was required to spend some time in uniform on a patrol rotation. By episode #611, "Guerrillas in the Mist," he finished his mandatory patrol rotation and is back in Homicide, where his new title is given as "MDPD Homicide Detective Sergeant Frank Tripp".