EnCase can read/decrypt PGP? (Score 1)

It was said in another thread here that certain custom have been using EnCase software to make an image of a HD and to read its data. So I went to EnCase website and I read the .pdf there. It says: [...] Encrypted Volumes and Hard Drive Encryption: EnCase can analyze and acquire mounted encrypted volumes, such as PGP and DriveCrypt, and give examiners full access to data on hard drives that are wrapped with encryption technology, such as SafeBoot. What does that mean? "give examiners full access to data on hard drives that are wrapped with encryption technology"