Not sure it is that straightforward. Bartow and Douglas counties are the most recent additions to the Cobb system, and law enforcement in both is encrypted but Fire and EMS is not (OP did ask about fire/ems too). To date, Douglas County SO hasn't been consistently encrypted either, so I don't think encryption is "strapped," or at least not yet, for them. Nor is Douglasville PD encrypted. Up in Forsyth it is exactly the opposite - Fire/EMS is now encrypted but SO is still in the clear for dispatch (although they are obviously not a recent addition to the Cobb core). Interested if you are seeing more encryption than I have described here; perhaps it has changed further recently (it obviously almost always goes only in one direction!).