I was speaking to a friend in another WA State Government Department who mentioned in passing their section where using Facebook. Knowing their Department was extremely conservative and they where working in the legal section, I asked how.
The legal enforcement unit is using Facebook to track down people. Some people make themselves difficult to find by normal means but keep updating their Facebook account and provide investigators with details of their friends, who might know their location.
Of course, the head of the legal section needed to write a formal business case just to get one staff member access to Facebook. In a Department that strictly controls access to social media for staff, is now using social media to find people that it can not find using traditional methods.