They sit in the church parking lot and the body shop parking lot. If you are traveling east on Memorial coming into Stone Mountain watch out. When you crest the hill the speed limit is 25mph, as you descend it is easy to go way too fast. Once you are halfway down the hill you are in their range. I work nearby and I have watched one officer get seven people before lunch. They do not seem to have any schedule and they operate day and night, so be careful.