An interesting issue has come up in my north Atlanta neighborhood. 1. Due to traffic flow changes, residential streets in the neighborhood increasingly are being used by commuters to avoid traffic on major arteries. 2. Some of those residential streets have "No Thru Traffic" signs posted. 3. Residents complained to the local police department and requested police intervention. 4. Officers have begun pulling over and detaining motorists at random to check their drivers licenses to determine whether they reside in that neighborhood. 5. This is not a roadblock or checkpoint of the sort used for immigration enforcement, DUI enforcement, etc. where every vehicle is being stopped and driver questioned. Only some vehicles are being stopped. 6. Officers have stated to drivers that the stop was for the sole purpose of identifying cut-thru drivers and there was no other cause for the stop (e.g., a moving violation). Are these stops legal? Please note I am asking about the legality of the stops themselves rather than the legality of the No Thru Traffic signs themselves (there is a thread on that already - https://www.georgiapacking.org/threads/no-thru-traffic-signs-legal.272555/).