Schutzhund is a sport whose purpose is to evaluate a dog's character, by giving it work to do, then comparing its performance to certain guidelines as well as the performance of other working dogs. Schutzhund evolved around the turn of the twentieth century as a means of testing and preserving the character and the utility of German military and police dogs under extreme conditions.
The Schutzhund test is a day-long event which tests each dog's mental stability, drive, concentration, ability to scent, courage, and willingness to work. In one day it must compete successfully in three entirely different phases: tracking, obedience, and protection.