U.S. Frequency Allocation Chart as of January 2016
WWG1WGA
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
Lone palm is absolutely correct about the frequency allocations.
Now, receiving clear comms is another thing entirely; many LEO and sheriff depts have switched over to encryption.
(Tech slide:
But some haven’t, so scanners are still used:
https://www.thedrive.com/reviews/27907/best-police-scanners
)