Since you mentioned freq's and not talkgroups, it doesnt even sound as though they are on a very advanced system at all, thus leading one to beleive that they must not be all that worried about people hearing what they say.
It doesn't seem that way, too worried about being heard that is, unless they think these drug dealers aren't smart enough to operate a scanner.
What I was more worried about than "losing" a good frequency, although my post may have come off that way, was the safety of the officers involved. They are tracking dug dealers, making buy's, making bust's, etc...They plainly say stuff like "the C.I. is walking up to the door now, the suspect answered and is handing him the package, stand by, etc....."
I would really hate to see this C.I. get his face shot off by a 12 gauge because they knew he was a "Narc" because some "smart" (if there is such a thing) drug dealer knows how to work a scanner and found this frequency here after I posted it.
I guess what I'm trying to say is why even mention the "hidden" freq's you have if you're not willing to share them? The RR database of freq's and talkgroups were compiled form those in this community that did.
I think I may have inadvertently mentioned it in one of my previous posts. Let me give this a bit more thought. I'll submit it the RRDatabase if I decide the risk to the people involved is negligible.