Of course the outside of the cottage was investigated:
"On this subject it is also useful to recall that at the hearing of April 23, 2009, the witness Gioia Brocci mentioned above declared that she had observed the exterior of the house, paying particular attention to the wall underneath the window with the broken pane, the window of the room then occupied by Filomena Romanelli. She said: "We observed both the wall...underneath the window and all of the vegetation underneath the window, and we noted that there were no traces on the wall, no traces of earth, of grass, nothing, no streaks, nothing at all, and none [39] of the vegetation underneath the window appeared to have been trampled; nothing" (p. 142 declarations of Gioia Brocci). She also recalled the existence of a nail on that wall, which jutted out about 6cm, and added that "walking along the outside perimeter of the house" her shoes became dirty with "grass attached to the shoes" (p. 145, cf. also declarations of the assistant Zugarini, hearing of Feb. 28, 2009, p. 133).
The next fact to consider is that the pieces of glass from the broken pane were distributed in a homogeneous manner on the inside and outside parts of the windowsill, without any displacement being noted or any piece of glass being found on the ground underneath the window." (pgs. 50-51)
Ref: Judge's Summary