An incorrect approach to training dogs in tracking can lead to a confused animal and a frustrated handler. The dog's ability to follow a scent is far beyond what humans are capable of, yet unless a handler can make the dog understand which scent he is to follow, failure is bound to follow. Gerritsen and Haak's methods are based on acquiring a clear understanding of what is involved in tracking, what the dog's scent capabilities really are, and what conditions can affect the dog's tracking ability, and how. From this background, handlers can choose from a variety of methods to train their dog to track.