the most basic way is to just change "innocent until proven guilty" to "guilty until proven innocent" if encryption is involved. yes this is counter to the cons

the most basic way is to just change "innocent until proven guilty" to "guilty until proven innocent" if encryption is involved. yes this is counter to the constitution (like several other things the government does at the highest level), but it can be achieved de facto by a law that makes it illegal to not surrender encryption keys when asked. So if the cops serve a warrant and find files in your possession that you cannot decrypt, they just charge you with violating the encryption law and ensure the penalties for such are greater than or equal to whatever crime they were originally intending to prosecute.