Bruce runs back the odometer on his car to make it appear as if it had fewer miles. Wally buys the car. When he checks back through past sale reports through his state's title office, Wally discovers that the car had fewer miles when Bruce sold it to him than it had when a previous owner sold it to Bruce. In legal terms, in selling the car knowing that he had tampered with the odometer, Bruce is said to have had .

Scienter

Explanation: Scienter be defined simply as an intentional act of damage. In an event whereby a perpetrators has clear knowledge of an act as being legally wrong or unlawful and still goes ahead to commit such offense.

Bruce had prior knowledge that tampering with the odometer( keeps track of the mileage of a car from time of purchase till date) of a vehicle is an offense and still went ahead to run it back so it would appear it had fewer miles probably to increase the buying potential or market price of the vehicle.