Williamson County is chock full of troopers along I-35. Got my only speeding ticket ever there. Not that he was speeding or anything.
Williamson County is quite a bit different than Travis County. For example, in Travis County of you get bused with an ounce of pot you might get hauled in to jail a at most receive six months probation. Just across the county line in Williamson, you will likely get time for the same offense.