In addition, the dogs are taught impeccable manners and obedience. The slightest sign of aggression can put a once-promising detector dog out of the running.

• 另外，这些狗学习了毫无瑕疵的礼仪，并对主人绝对服从。哪怕是一点攻击性表示，都可能使曾经大有前途的侦查犬失去资格。