Undelete or file recovery

I know of a situation where files were deleted from a Mac when the user believed they had copied them to an external hard drive only to find out that the files were not on the external hard drive after they were deleted from the Mac. My question is, can all of these files be recovered? I have done some searching and see that there are Mac forensics out there but can they actually restore images to there original state?





via Bleeping Computer Last 20 Posts http://www.bleepingcomputer.com/forums/t/479058/undelete-or-file-recovery/