Please pay special attention to Appendix 5 where it states in part:
Limitations:
The sites have been well travelled by other individuals both before and during the investigation. Fragments and other possible evidence have clearly been handled/moved prior to the arrival of the investigating team
and
As with other sites, the locations have been well traveled by other individuals prior to the arrival of the Mission. Time spent on the sites was well used but limited. During the time spent at these locations, individuals arrived carrying other suspected munitions indicating that such potential evidence is being moved and possibly manipulated.