Except that the communication between police departments is clearly marked or known (because of various regulations/laws) to be confidential. Here it's not clea

Except that the communication between police departments is clearly marked or known (because of various regulations/laws) to be confidential. Here it's not clear (as I've also mentioned in a previous comment [1]). [1] https://news.ycombinator.com/item?id=5518161 https://news.ycombinator.com/item?id=5518161