Lancaster PD heavily covers the area between Belt Line Road and Danieldale Road. Both sides, they have lots of places to hide and use a variety of vehicles (all very new, including Mustangs and F-150 pickups as well as Crown Victorias). They also work with Dallas Sheriffs Department deputies. The speed limit is 60MPH; do Not go too much over. Depending on the day, you may get by going 70; others they nail you for 61. But anytime, over 70? Get your wallet out.