An admission of a crime was made, written up, encrypted, and put on a USB(CD maybe) and sent to the Home Secretary. The police were then contacted and informed that the Home Secretary has, in his possession, an admission of a crime that requires a custodial sentence.
Technically, that he never had the keys to unlock it was irrelevant. He had an item that was an admission of a crime, he was duty bound to hand it over and unlock it, even though there's no way on earth he could. But the way the law was written, he was the one in trouble.
If this is allowed to stand, we now have the way for someone/anyone to send you an encrypted file (email/cookies), that will then get you found in contempt of court as you are unable to prove you can't unlock it.
I doubt it, the Democrats wouldn't be stupid enough to try Corruptillary again.
I'm pretty sure they will be.
Pohl's law: Nothing is so good that somebody, somewhere, will not hate it.