The problem there is the police using bad processes. That's not insolvable. Courts already have processes to protect against some of that cherry picking and prosecutor's fallacy type stuff. Avoiding technology doesn't seem like a sensible solution when safety processes already work in many areas.
If you can legally be fired for having police show up at work, then you're at risk of being fired for any reason and that itself is a problem. Solve that problem with employment protection laws like many countries already have.
You're talking about a wishful thinking, I'm talking about the (for many people rather harsh) reality. I agree, it can (and should) be solved in the ways you mention, but this technology will not wait, it's here now. At the moment it's just incredible how often cops and prosecutors will trick possibly innocent people into plea bargaining to close the cases as quickly as possible and avoid having to prove them guilty in actual trials. Tech that makes it easier to round-up "the usual suspects" will just make it easier for them to do it to an even bigger group of people.
If you can legally be fired for having police show up at work, then you're at risk of being fired for any reason and that itself is a problem. Solve that problem with employment protection laws like many countries already have.