Sorry, maus, I don’t know of any open source whatever-it-is-you-are-asking-for.
Just to be clear, I was kinda forking the thread to start a rant about how many toys are developed and pushed onto our safety agents. Fancy toys, not cheap, and though there are the laws in place to keep the public informed, protect the public’s privacy and legal rights, chain of evidence, etc, etc, I’m sure that the toys are increasingly coming with licensing terms that are either run counter to the law, or are clearly in the gray area.
I won’t go into more detail since I can tell from your reply that this is the wrong topic for that. Here, we are just looking at the cool tech that actually worked by not endangering the public with ridiculous high speed chases through residential streets.