The amateur attempt at entry is also a giveaway.
The damage to the wing mirror housing and B pillar trim is where they have inserted a screw driver and then levered the glass to stress fracture it.
Professionals would have likely been using an automatic centre punch
http://www.youtube.com/watch?v=7NrPxofPQvA
I was talking to my work mate about this thread,he said his mate who works for a VW dealership had told him that they have had alot of mk6 golfs in for repair after they had been broken into by someone prizing the doors open by wedging a screwdriver into the top of the door and inserting their arms into the car.