Second, declaring someone to be an outlaw would make it illegal to transact basically any business with them. ... In this sense, outlawry could be considered an

Second, declaring someone to be an outlaw would make it illegal to transact basically any business with them. ... In this sense, outlawry could be considered an absolute economic embargo targeted at a person or persons rather than a state or government. Governments, and even political pressure groups, are re-inventing this aspect of outlawry when they freeze bank accounts and use more informal kinds of pressure to make 3rd parties punish people. Partly they do this for the same reason as medieval courts: it's a work-around for the fact that people are hard to reach because they live overseas. But also note, these new methods can be used without a court order. Which raises the suspicion that the real limitations being worked around are tedious matters like the presumption of innocence and due process of law.