I love dogs - German Shepherds are my favorite!  I own 4!  Are you a dog person?
Yes, I also love dogs. The German Shepherd is a new breed of dog, right? I think they have only been around since 1899.
Really?  I didn't know that!  I wonder who discovered them?  They are so affectionate!
I'm not sure who discovered them, but I know they were bred specifically to herd sheep.
Mine love to try to herd the cats and the kids.  They are so gentle with both, it's amazing. 
They also are easily trained, obedient, and intelligent. Because of this, they are often used for disability assistance and for police work.  
I have seen a lot used as police dogs.  I thought because of their sense of smell.
Police dog
A police dog, known in some English-speaking countries as a "K-9" or "K9" (a homophone of "canine"), is a dog that is specifically trained to assist police and other law-enforcement personnel. Their duties include: searching for drugs and explosives, locating missing people, finding crime scene evidence, and attacking people targeted by the police. Police dogs must remember several verbal cues and hand gestures. The most commonly used breeds are the German Shepherd, Belgian Malinois,
them that they are not alone. The whole community around the world is standing behind them. They have to trust that if they open their mouth, then we can change something." To a reporter from "The Observer", she commented: "It's funny that these people think I'm so powerful. I've figured out over the years, you can only hurt me if I love you; if I don't know you, I really don't care. There are people who want to kill me