Re: Self incrimination?
I believe one of the more major problems with the Judge's assertion that the 5th covers this, is that it has been repeatedly ruled (all the way to the Supremes) that the 5th is a right that you have to assert - i.e. when Plod asks you to unlock your phone, you THEN get to assert your 5th rights and it's then decided by a judge as to whether this is the case (or not).
The judge can't pre-emptively claim 5th Rights for all the people affected by the warrant.