Between you and me, when you have to track down yourself and beat this self over the head with a stick until it shuts up, something is not quite right.
The recovery of evidence is a destructive process that cannot be repeated: this applies to the recovery of buried human remains (regardless of the preservation) and other associated or related evidence. Consequently, in both archaeological and forensic contexts it is imperative that buried evidence is recovered correctly from the beginning as the process is an unrepeatable experience.