In each case, the dogs basis of training was circle and bark, and each had supposedly been converted to police standards for street applications. However, in each case, when tensions were high, each dog hesitated even though they had been directed to attack. A well trained service dog can be recalled at any point from the attack. Control of the dog through voice command permits the officer to call the dog off prior to or subsequent to the apprehension, as the situation warrants. Once the dog is called off, he is positioned where he can safely watch the suspect while the officer approaches and secures him.
Total control is with the officer.
If the suspect is intoxicated and unstable on his feet, or if he is loud and abusive, the dog is close enough to be of instant assistance to the officer if needed, however far enough away, and conditioned in such a manner that he will tolerate such movement and actions by the suspect, without the officer having to be concerned about the dog biting at his own discretion. There is very little tolerance level in a circle and bark dog. If he locates a suspect and the suspect stumbles or moves accidentally, there is a high likelihood of an unwarranted bite. In such cases, it is only a matter of time before a good attorney has the case in civil court. It is hard to justify a training method where the dog is allowed to make a decision as to the amount of force deemed necessary.