Allow me to cite an example of why private gun sales need some oversight. I have recently relocated closer to Dallas while the house at the farm is renovated and repaired. I own 30 acres and am surrounded by other houses. One of my nieghbors likes to drink and then shoot his rifle. Now if there were no houses or one of my pastures with horses located in the direction he aims I may not have a problem. He shoots at an embankment with a high powered rifle. This man is an ex cop who was relieved of duty because he pulled a pistol on his then wife during an arguement more than once. He cannot pass a background check but brags about buying guns from private individuals. Would you feel safe?
Now I do not see how any law enforcement agency can enforce a law like this but can clearly see the loop hole and potential danger our current system turns a blind eye to. Shalom