
Department of Justice (DEA)
WSI implemented BlackBox to manage individuals moving in buildings and buildings it's self
In Sweden we called it "Come and Go" and was developed to track students in school where they are located and in witch rooms.. And how they moved in and out from school in real time.
I saw a Documentary from 70s about DEA bought the application "Promis"
Today they have "BlackBox" I suppose a by far more sophisticated solutions:))
How much they use BlackBox I really don't know!!