Many agencies that receive their dogs from Castle’s K-9 prefer the German Shepherds and the Belgian Malinois imported directly from Europe . Castle’s K-9 is one of the largest importers of Schutzhund trained dogs in the United States . However, Castle’s K-9 has long recognized that other breeds, such as the retrievers, perform very well as both narcotics and bomb detectors and can be obtained in the United States.
