Table 1. Location of sampling sites: latitude and longitude coordinates in decimal values.
| Site | Description | Latitude | Longitude |
| X | Spot were the corpse was found (margin of a corn field) | N 45.417371° | E 11.728335° |
| CF | Inside corn field | N 40.417187° | E 11.728294° |
| Le | Ridge of the levee bordering the corn field | N 45.417360° | E 11.728178° |
| 1.7 km | Site located at 1.7 km from the murder site and sharing the same crop (corn) | N 45.432579° | E 11.725670° |
| 3 km | As above at 3 km | N 45.429420° | E 11.693049° |
| 18 km | As above 18 km | N 45.348369° | E 11.937301° |
| 19 km | As above at 19 km | N 45.328721° | E 11.938243° |
| 1.8 km F | Site located al 1.8 km but not cropped for over 50 years and featuring natural vegetation and secondary growth (fallow) | N 45.430336° | E 11.712277° |
| Sar | Control site from an uncultivated area in Sardinia (Castelsardo SS, Italy) | N 40.909556° | E 8.694076° |
| Alp | Control site from an uncultivated area in the Alps (Soranzen, Cesiomaggiore, BL, Italy) | N 46.074211° | E 11.948337° |
The “Car” samples were found within the car impounded from the suspect.