Simple fix (Score 1)

IMHO there is a valid point that encryption will slow down investigations. However, the easy fix is to only apply this type of law when someone refuses to give up encryption keys. If the data is decrypted, there is no need for an extension. If a person does not want to give up the keys, they basically forced the extension on themselves. Unless you have some data that will get you in trouble, why not just give up the keys and give the police everything they need to see that you did not do anything wrong. If you are in the wrong, you broke rule #1 and 2.... If you can't be good, be careful. && Don't get caught.