Tracy Vetter. It's an upbeat name for an upbeat kind o' gal. She was one of the finest homicide detectives at the Ninety-Sixth precinct of Toronto's Metro Police force, though often underrated. Tracy became Nick Knight's partner in the Third season. She certainly had very little in common with Nick's former partner, Donald Schanke. No one would ever find Detective Vetter munching on a souvlaki over her latest case at the morgue.