I want to know the answer to the following question:
The extent of what by the perpetrators was considered in an examination of their activity and level of control?
All the background I'm provided with is that "In paragraph 13 the judges raise the issue of the perpetrators' access to the victims: "The historical examples of genocide also suggest that the area of the perpetrators’ activity and control, as well as the possible extent of their reach, should be considered. ...". Is that enough to answer the question?