NIST's draft version of their "Guidelines on PDA
These documents are important, but maybe not for
the reason that you think. The information is available elsewhere,
maybe even in a single document. What makes it important that NIST
publish it is that it becomes a federal standard.
The reason that this
is considered "good" is that it makes legal proceedings that much easier
(shorter) because you, as a forensic type talking to judge/jury/other
lawyers, don't have to prove the legitimacy of your investigative
process each and every time you're in court. The short phrase to
describe it: a protocol.