1. A system for determining a region searched by a moving scent detector in the presence of wind, said moving scent detector having pre-calibrated scent capabilities, the system comprises: positioning means attached to the moving scent detector for determining a trajectory followed by the moving scent detector; scent pattern obtainment means for obtaining an oriented scent pattern; and, combination means arranged for combining said trajectory and said oriented scent pattern to obtain the region searched by said moving scent detector.