When they run radar, there is no conversation about it. It's a one person operation.
In the old days, you'd hear them calling out the offender over the air but now all you'll likely hear is "All set MDT".
What you are saying more accurately is there still is a conversation, but it’s been moved to the mobile data terminals (MDT’s). While its good to know, it was just one possible example, a reason for encrypting. I’m sure there are others. As stated, I was just spitballing.
So far, no one has posted a known reason for the traffic channels going encrypted. This tells me it’s not the reason we should concern ourselves with so much as the fact. They really don’t need a reason. They could give us any excuse or none at all, as long as it’s legal. Or simply feed us apologies every time they encrypt and forget to reset! It’s pretty much “You get what we give you, like it or not!”
Ive not seen a CSP car on the interstate highway while I was traveling themf in many years and their dispatches haven’t fore-warned me about possible slowdowns or detours (the primary reason I started listening to CSP). So as far as I’m concerned, it’s getting close to a waste of time to monitor CSP (AAA with a gun), not to mention their trunked system can put a big dent in your scan rate depending on how many sites and TG’s are programmed. I still have them active in my SDS200 but limit to Troop H & L dispatch.