Graham wrote:

An animal rights activist has been ordered to hand over her encryption keys to the authorities.
...
But an animal rights activist is one of the first people at the receiving end of a notice to give up encryption keys. Her computer was seized by police in May, and she has been given 12 days to hand over a pass-phrase to unlock encrypted data held on the drive - or face the consequences.

The woman, who claims to have not used encryption, relates her experiences in an anonymous posting on Indymedia.

Its not clear that a similar rule would be constitutional in the U.S.. Its also clear that if the evidence of my terrorist plot is encrypted and I'd only go to jail for 5 years if I failed to give you the key, I'm going to pick that option.