Maryland State Police ESPECIALLY in the begining and end of the month will set up Radar and Laser Radar traps along Route 4 between Old Crain Highway and Woodyard Road sometimes as far back as Dower House Road, Route 4 in this section has plenty of bends in the road is heavily wooded in sections, and has several over passes where Maryland State Police set radar up on both sides of the highway sometimes both sides at the same time, often they have multiple troopers in the same location, I have seen as many as 6 in one spot. Enforcement is especially heavy around holidays or long weekends, they also set up sobriety check points in this stretch around holidays