It really depends on the school of thought the instructor or trainer are using. Some do socialize in order to get their dogs more neutral, others do the whole ignore all dogs thing so that they never even think about playing with another dog. I completely agree about the not allowing the dog to play where they do work though. I've noticed my dog understands that when we go to training, its training time and not play time, he is much more attentive there than anywhere else we go. So maybe a police officer that needs his dog like that in all situations doesn't want the dog to think its okay to play in x environment.
About the officer taking his dog to the park, was this a dog park? Because that is something I would never recommend. A dog that is trained to bite and that has a known (taught) aggressive streak should not be trusted around other dogs in such an uncontrolled environment. It takes a split second for a dog to do something that can get the other dog angry or feel threatened and there is no way the officer will be able to stop it in time.
Also...lets be serious, not all those people know exactly what they're doing and most are training just off of experience. There isn't one program in the United States that trains all the dogs and many smaller towns have no way of affording a training program that produces dogs on a consistent basis. Not all of these dogs are the best trained, and as much as we all think they should be bullet proof and the best examples of our breed, they aren't always the best trained. I'm not really blaming the dogs or the handlers because the dogs have an extremely difficult job and its hard to train it for every situation it can see out in the field.
Last edited by martemchik; 07-24-2012 at 12:16 PM.