I'm not arguing that it's a very dangerous slope for public liberties. I believe the checks and balances against executive branches are increasingly broken in m

I'm not arguing that it's a very dangerous slope for public liberties. I believe the checks and balances against executive branches are increasingly broken in most western democracies, and that robust online privacy pushes in the very desirable direction of re-establishing a bit of that balance. I'm really concerned that most citizens don't see this as a major voting issue. However, this was neither the OP's point, nor what I was answering too. He described the measure as ineffective, because most criminals would be able and willing to acquire an illegal SIM before using a phone. I believe this to be false and I explained why. Being dangerous for liberties is not the same as being effective from police forces' PoV; actually, these two qualities are negatively correlated most of the time.