I think you misunderstood me.
Nope, I'll demonstrate:
Case 1: Cop plants real meth (not bicarb) in your car. You have to explain it (i.e. prove the cop committed a crime), or go to prison for a while.
Parallel to this law: Cop doesn't plant anything, points at the empty boot of your car, says "that's an invisible, odourless, dimension-shifted bag of contraband we can't touch, see or otherwise detect, but I think it's there and you've just hidden it beyond the ability of our tools to reach! Get 'im, boys!"
Case 2: Cop plants data file filled with random data on your laptop. You have to explain it (i.e. prove the cop committed a crime, or prove it isn't an encrypted file (impossible)), or go to prison for a while.
In both cases the assertion of a crime is not enough (in case 1 he has to plant real meth in your car, in case 2 he has to plant a random file on your hdd), and in both cases the cop has to commit a crime (tampering with evidence, or whatever) in order to put you away.
I still don't understand what powers this new law gives to a corrupt cop that don't already exist.
And now after this law:
Case 1: Cop doesn't have to plant anything, just points at random block of free space "That's an encrypted hidden partition, get 'im boys!"
Case 2: Cop doesn't have to plant anything, points at that test container file from an encryption program you ran a trial of a year ago and forgot about, it might contain a text document with your CC# or something and that's all, but Mr. Poh-leece-man can up and assert "Omg, encrypted kiddie porn! And encrypted nuke schematics! And encrypted blueprints for the White House with drawings that say 'execute tha prezadent here'! Get 'im, boys!"