In the early 90's wreck chasing was made illegal in Louisiana. New Orleans, the largest city by population in Louisiana, is still able to be scanned and wreck chasing still exists there to a degree. But recently, a large majority of the municipalities have gone encrypted to such a point that they cannot be scanned. I've been a scanner junkie since before my early towing days in the 80's, through my Paramedic/RN days and even now. We used to monitor in the office just so we knew when we would be next up on rotation. And it did help our response times. Now, not being able to monitor most of the agencies we tow for, it has shown a small affect on response times as well as killing a hobby.