Clarksville, TN – The legality of Clarksville, Tennessee's new traffic light cameras is in question. A motion filed in Montgomery County Court argues camera operators should be licensed as private investigators. If not, the motion says the footage shot should not be admissible for issuing traffic citations. Independent company Redflex operates the cameras. Attorney Greg Smith, who filed the suit, tells the Clarksville Leaf-Chronicle the issue is a matter of due process in court cases. Courts in Texas and Louisiana have ruled against traffic cameras in similar situations. Since their installation three months ago, the Clarksville cameras have led to 100,000 dollars in citations. The local police department has received seventy-thousand dollars from that with the rest going to Redflex.