Now imagine if these cops were wearing cameras . Imagine if there was a standard procedure that 2 cops had to search a car on opposite sides and film each other any moment so that no one of them could "plant" anything . Imagine if surveillance cameras existed in the place where traffic stops taking place so cops would know that their body camera videos are timestamped with the surveillance cameras that exist at the spot .
So all this money is spent to achieve what exactly? body-worn cameras provide an overview of the overall incident and that's it, I can still manage to slide a tiny Ecstasy pill under my car seat while being watched by 10 cameras, in fact, in of the cases the went public after another officer confessed what his co-worker told him was that he held a drug pill between his fingers, reached to the victim's pocket to search and and "found the pill".
This would only work effectively if the procedure states that policemen have to approach the vehicle naked, with their legs and fingers spread, mouth open (probably add a mount-camera too), but as long as there is the slightest possibility that the policeman can slide a tiny little object in your pocket/car/house then the whole process is flawed.
This is the very reason why the previous legislators wrote the rules in such a way that at least a few different organizations/departments need to coordinate in order to frame you, you need to have a bad cop and a bad prosecutor working together to frame you which is pretty much unlikely to happen compared to when a single person can arrange everything by themselves.
So the problem is not that police is searching your car , but that the system is set up in such a way that it can be easily manipulated .
No, the problem is the police searching my car without a warrant, as explained above, cameras won't cut it, it would only make things a little bit more difficult but sure thing is -- it won't stop them.
In blockchain you can prove if you're innocent or not . Your transactions are the evidence .
You can't, anyone can frame you just like the drug example, say that I have a blacklisted address which the Chain analysis assumes that it belongs to me as an international terrorist who caused the death of 10000 people, what happens when I send a few sats to an address which you owned and confirmed ownership to it by KYCing yourself to the government, how are you going to prove that you were not in contact with me and that I sent you the coins to frame you?
Furthermore, if your funds sit on a CEX, not only they can partially frame you like that, but they could fully frame you by sending you "Tainted Bitcoin" and then withdrawing the same "tainted coins" to another address owned by you, this will be a perfect evidence that you and I are partners if we were to go with the assumption that those coins were indeed owned by me.
It's even worse if you think about it, there doesn't need to be an actual terrorist involved, the chain analysis company can just link those coins to anyone, they can just send you some random coins and they could just assume that you received them in exchange for trafficking a 10-year old boy, how are you going defend yourself against that when we don't know how they got to the conclusion and they won't share the "how" with anyone?
If you initiate a transaction that has two outputs one is 0.005655 and another has 0.001 all these chain analysis software will assume that the first output is the change address just because they believe it's impossible to end up with a change that is a round number, you could always fool these fools by ending up with a round change, everything else they build on it, later on, will be false, it is all but guesswork, greater for research purposes but terrible for court evidence.
So you want a safe community which is great, but you think all criminals are in the street you need to remember that many criminals are in government offices waiting to exploit anything against you, they would protect you from the street criminals but nothing will protect you from them, the more power you give them they more they will use it against you, not just against the criminals.
A safe world is achieved by increasing the standard of living not by spying on every aspect of the citizens' lives, there is no link between the cities with the most CCTV systems and low crime levels, and the opposite is correct, many cities are hardly watched and yet they have little no crimes.