Police canine evidence is unique in

Police canine evidence is unique in that despite the high level of
training now generally required of dogs and their trainers, the fact that the dog cannot speak and the
inherent variability introduced by the animal’s behavior must always be taken into consideration

結果 (中文) 1:

警察犬证据最独特的地方，尽管高水平的现在一般的狗和他们的教练，那条狗不会说话的事实所需的培训和总是必须考虑本身固有的变异性，介绍了由动物的行为

結果 (中文) 3:

警犬的证据是独特的，尽管现在的训练
狗和他们的教练通常所需的高水平，事实上，狗不会说话和
固有变异性由动物的行为提出了必须考虑