The entire US 51 North is a speed trap enforced by MPD and Shelby County Sheriff. There are three traffic light cameras, and the PD uses a laser type radar that they tend to hide in areas when the speeds change from 55 mph to 40 mph on a five lane road near TN 385. The traffic cameras flash appear to flash randomly when a car barely enters the intersection, as well as when no car has entered them. In addition, the PD have recently employed a non-marked white suv, with dark tinted windows as a mobile speed trap in Millington and the only time you will know you’ve been tagged is when the ticket arrives in your mailbox. I am not sure if they are tagging people for other violations, but wouldn’t rule it out. Best suggestion is to drive in the right lane 2-3mph below the posted limit, let the people pass you, and then resume the posted speed north of the city after First Baptist Church. Good luck trying to find any information about the make & model of the speed detection devices, calibration logs and etc from the MPD or city council-they won’t release the info and you’re better off just paying the fine.