Los Angeles homicide detective Mark Fuhrman is best known for his discovery of the bloody glove that was the key piece of evidence in O.J. Simpson's infamous trial, evidence that he was later accused of planting. In his defense against this accusation, which Simpson's attorneys claimed was racially motivated, Fuhrman testified that he hadn't used the word n***er in 10 years.
Evidence was later produced that proved otherwise, including the accounts of four people who had witnessed Fuhrman using the word more recently, and most tellingly, a taped interview where Fuhrman describes telling black gang members, "You do what you're told, understand, n***er?"
For lying about his racist remarks under oath, Fuhrman was charged with perjury, fined $200, and sentenced to three years' worth of probation.