It's creates a new and unstoppable asymmetry where wealthy people can avoid this tracking mechanism, but the poorer people cannot, and anyone can exploit the poorer people in society.
Politicians and powerful people will never feel the effects of this.
I wish people would understand that "losing perceived power", such as recognizing that an information asymmetry exists, is a completely different situation than "never having had power".
There are valid arguments for creating information symmetry, but it's not going to actually fix anything except lack of symmetry.
The idea would be that this still creates a lot of opportunity for people to notice they don't like what the police are up to.
Assume that either checks of the database or certain types of additions to the database would have some period of latency (additions is probably the better way).
Police begin some investigation. For whatever reason, they don't want to reveal this investigation to particular potentially involved parties. Police go to judge and ask for 'order of leeway' or whatever it would be called. They get it. All it means is that the police don't have to publish ongoing details regarding a specific investigation. New traffic tickets go right in the database, checks of the database do not reveal the investigation.
Where's the problem? Take it one step further, is there a problem without a straightforward remedy?
Destruction of evidence is more interested in whether you are doing it to cover up something that you reasonably know is a crime than it is in what the police know about what you did, so I'm not real worried about it here.
The choice of no one gets access is apparently not an option.
There are huge benefits to such systems but if the gateway is controlled by a small number of people then most of those benefits are null and most likely the system will prove to not be beneficial at all.
Well, not beneficial to the people outside of the group in control that is.
Note, I'm explicitly not talking about making it illegal or other feel-good measures. I'm talking about actually preventing the actions.