The fix to this is already in place.....Most larger agencies that have "Multiple foot and bike patrols" already use a "service channel" for getting and giving out that information. The average call goes like this: Police and Dispatcher are on a geographically based channel, if they are a large enough department, or, a dispatch and response channel if they are smaller or less busy. While the officer is dispatached, enroute, and arrives, he stays on that main channel. After investigating, doing whatever needs to be done, if they need to run checks, they go to service and THAT could be encrypted. They get the information about the suspect, then go back to the main channel. It literally is already that way in SLC and Davis County and has been for years. The personally identifiable information could be encrypted on secondary channels or via MDT's 99% of the time.
This is 100% an opprotunity to keep people from being aware of what is going on in their community. Yes, it will also help with the small fraction of people who show up on calls to "Watch", and the even smaller group that are committing crimes and using this to aid them.