Well, let's think about it, shall we. Say the police finds that Bullterriers or American Bulldogs do an outstanding job, just like this GSD here. So they decide to train them as sentry dogs for Police work. Now, say a car thief is racing from police at 100mph, by now helicopters are roaming the skies, dozens of police cars are following him. Eventually, the stolen car gets out of control, hits a building or tree and the thief tries to escape on foot. The police quickly catches up to him and for safety reasons they decide to send in two American Bulldogs to take him down. The dogs attack as they have been trained, one goes for the arm, the other for his left sneaker ... and the guy is down, his t-shirt get's ripped apart and his sagging pants come off too. The officers slowly approach the suspect, no need to hurry. They arrest him and book him for 23 felony violations and defecating in public. All of this is now of course being filmed by helicopters from CNN, ABC, NBC and Channel 10 Live News at 8. Headline story "Police use vicious pitbulls - almost kill teenager". Before you know it, you have a scandal on your hands, why did the police overreact? Who allowed using "vicious pitbulls" in the first place? Self-declared "dog experts" will show up in TV morning shows, explain how American Bulldogs are actually much bigger and stronger than pitbulls, that white bull breeds have historically been used to catch escaped slaves and that this video scene reminded her of just that (nevermind that the car thief was actually of Russian/Italian descent). In the end, the Chief of Police resigns, the mayor can't run for governor anymore, 4 Police officers are put on leave without pay, the "vicious pitbulls" are euthanized of course, the car thief walks free and gets paid an undisclosed sum for unnecessary cruelty, physical harm and psychological damages. Oh yeah, and ABs get banned in many cities. On the other hand they could have just used the accepted gold standard, the GSD. These dogs convey professionalism, perform extremely well, take down a suspect in seconds, ... and somehow always portray a dog in uniform; they just look like official police dogs. I don't know if you've noticed, but in airports they often use Labs now to sniff for food or explosives etc. Here even a GSD seems to appear too 'official' as nobody wants to alarm travelers or give them a feeling of living in a police state. In many instances it's simply about perception. And GSDs are perceived as correct dogs, appropriate for serious police work. Dan