North of Duncan, at what is known locally as the Lawton Duncan Y. This is a case if the left one don’t get you the right one will. The south side of the trap is Duncan Police territory, and the north side of the trap is Marlow Police territory. On the north side the cops park in the mediun facing either north or south or on the shoulder facing north. since they don’t always sit in the same place they are harder to spot, and there is a slight grade there that makes it a little harder to spot the cops. On the south side Duncan Police usually run a driving loop or park on the grass. Also if you see a Duncan Cop Leaving the speedtrap. Slow down anyway, it just means that it is Marlows turn to run the trap.