[jrmg]

Why do you make the jump here to "you are presumed guilty"? Your guilt would have to be proved in a court just like for any other crime.

Are you suggesting that the courts would somehow just believe, with no evidence, that it's encrypted data relevant to the case and you're wilfully withholding the keys?

[try-finally]

You are not presumed guilty. But you are found guilty of breaking the new law which comes with a 5 year prison term if you were accused of being involved with terrorism or hiding child porn. Regardless of any evidence.

[SEMW]

> You are not presumed guilty. But you are found guilty of breaking the new law ... Regardless of any evidence.

"Being found guilty... regardless of evidence" makes no sense. Part of 'being found guilty of breaking the law' involves the prosecution giving evidence that a jury thinks proves your guilt beyond reasonable doubt (inc. proving that you were in possession of a key, and so that it was actually encrypted data). s.53(3).