Abstract: A target tracking device has an input unit configured to receive information on a target to be searched for, and a predicted path calculating unit configured to use the received information and a plurality of prediction models to calculate a movement candidate point of the target for each of the prediction models so as to provide movement candidate points. The predicted path calculating unit also determines a predicted movement point of the target by making a comparison among the calculated movement candidate points. A determining unit able to determine whether an image of the target is included in imagery of a camera, at one of the movement candidate points, is controlled to first check imagery of a camera at only the predicted movement point of the target.