Do you have any passwords that would be embarrassing to you if they came out? Can you imagine someone that breaks the law might have an encryption password that was incriminating?
If my password is "iKilledColonelMustardWithACandlestick" - and it's actually an incriminating fact, how does that factor into potentially self-incriminatory discovery?
They offer immunity for the crime exposed by the password and thus you are required to disclose.
Does it work that way? Can you legally compel self-incriminating speech as long as you offer immunity?
If that was true, why wouldn't it be used all the time to incriminate other people? Currently they need to get the subject to agree to such a deal, or so the impression I get from the media is.
If my password is "iKilledColonelMustardWithACandlestick" - and it's actually an incriminating fact, how does that factor into potentially self-incriminatory discovery?