The draft NIST Special Publication 800-101, Guidelines on Cell Phone Forensics, is available for public comment. The guide outlines general principles and provides technical information intended to aid organizations evolve appropriate policies and procedures for preserving, acquiring, and examining digital evidence found on cell phones. Computer forensic specialists and members of the law enforcement community are encouraged to provide feedback on all or part of the document.

Get this document here : http://csrc.nist.gov/publications/drafts.html#sp800-101