If it is a properly trained attack dog (command words) and not just trained to attack everything, they may take on the task of retraining it. To do this they h

If it is a properly trained attack dog (command words) and not just trained to attack everything, they may take on the task of retraining it. To do this they have to have a high confidence they know the commands to give the dogs to make them attack. This is something frequently not divulged by the owner who is probably claiming the dog "just went off".