[csandreasen]

Eventually her husband provided the cops with the correct password[1]. The 5th Amendment prevents you from providing testimony that would incriminate yourself. In this case, though, she was being compelled to decrypt the laptop to produce evidence against someone else - Ms. Fricosu was granted immunity against any evidence collected from the laptop[2], so she didn't have any 5th Amendment grounds. In general, a Grand Jury has the right to subpoena any evidence from a third party that is relevant to a criminal investigation, and you can be held in contempt if you don't produce it. She had already admitted in a wiretapped conversation that there were documents relevant to the case on the laptop, the laptop was in her possession and that she refused to give them the passwords.

[1] http://www.denverpost.com/ci_20080656

[2] http://www.wired.com/images_blogs/threatlevel/2012/01/decryp... (p.9)