I have an issue like this. First we had a section 8 neighbor that let their pit bull run loose. Someone called it in. Nothing happened. Then it ran after a squirrel, and knocked down the old lady at the end of the street. She was in the hospital for months. The lady's son was pissed. Another call, nothing happened. Dog vanished.
Some renters behind us had 2 pit bulls. They have a fence, but it's only about 3 feet high. One night, I came home with my kids, the oldest of which was about 3 at the time. One of the 2 pit bulls ran up to my daughter and knocked her down. I ran the dogs off, and filed a complaint. The cop told me that, even if the dog killed my kid, there was little he or I could do. I was sued for being racist, but in the months that followed, it was determined that pit bulls are illegal in my neighborhood, and even boxers and some other breeds require a 6-foor fence, but these 2 dogs didn't even have their shots. The suit was dropped, but my house was TPd and a bunch of gravel ended up in my yard. I took my security video in, and the neighbor had to pay for cleanup. The best part was that this forced this particular neighbor to have to get a job. Animal control picked up the dogs, and they couldn't pay the fine. They have since gotten a yapper. I feel sorry for the poor dog, because it's left out in any weather, without food or water.
Meanwhile, my next-door neighbor also had gotten a dog, which they also left out without foor or water, sometimes for days at a time. The dog got loose, and was picked up, so the neighbor got a smaller dog that can't get out. One of those decorative, foot-sized noisemakers. It barks constantly. Numerous complaints have been made by several neighbors, but nothing has happened. We were told that, if the dog being left without food and water bothers us, we should proivide the same.
I happen to have a dog, but it rarely barks, and isn't usually out by itself. The next door neighbor is blaming the barking on our dog. The thing is, our dog isn't out while I'm trying to sleep, and has a much deeper bark than the decorative dog. One night, I was awakened about midnight by my dog. Very startling. The next door neighbor's house was on fire. Officially, the electric water had a gas leak (WHAT?). Anyway, I called the fire department. The police later talked to me, and asked me how I came to call. I was issued a citation for disturbing the peace. I've gotten out of that citation, but was warned that action would be taken if there were further complaints. The house was vacant for a year for repairs, but now the annoying dog and its owners are back.