Sharraxaadda

There is dog that has been roaming freely in my neighborhood and coming into my yard. A neighbor told me that a dog with the same description either tried to bite or did bite an elderly lady that lives on the same street as me. I have 4 children under 10 years old that enjoy playing in our front yard, and now I feel like they can't do that safely with this dog on the loose. It does not have a collar, and has been spotted a handful of times over this past week. Saturday it was in and out of my yard over the period of a few hours. I am relatively new to Georgia so I'm not sure what the best process is to get this taken care of!