There are three main groups that run surveillance in SL County:
JCAT Joint Criminal Aprehension Team, US Marshalls and Local cops (OPS 5)
Metro Gang cops
Drug Enforcement (Probably with DEA involvement)
The drug enforcement guys have been all over. They like to try to remain obscure, If you talk about them too much in a public forum, they will move again, so please keep the chatter to a minimum.
In the VHF days, they would jump to different freqs like 155.565 and 155.445.
Old Talk Group records indicate they have used TGs 5216 & 5408. I used to hear them on 3456, then 4128. After the SL Sheriff joined UCAN, they moved to 2912 the old SLCO Detective TG. Now, they are also using 2880 the old Agency 16.
Agency TGs were unassigned TGs when SLCO shared a TSYS with SL City. Jordan School Security was using Agency 1. Since the SLCO-UCAN merger, I do not believe these were put back into any radios. UCAN likes standard templates where eveybody can communicate with each other.
Anyway, there have been some interesting comms:
"War-Room to Surveillance, It's getting too dark to see anything on the pole camera"
"Our bandit just got a phone call from a new unknown player."
Once, a team of local "Agents" traveled north to Snowville. Agents from Twin Falls were following "suspects" toward Utah. They "handed-off" the suspects to the local agents who tailed them back to Salt Lake.
FWIW, You can also tune into the agents from Davis Co (12000) and Weber Strike Force (12032)
So now you know. They are a multi-agency task force trying to clean out the dope.