In the far future, tiny bots injected into the body can do great good-or great harm, depending on what kind of bots they are.
A class of cybernetic prosthetics worn over the face
Augscannens are common handheld devices used by security and law enforcement agencies
There are crimes for which a man is not killed, but chased into the wilds, away from his home and country, to not return or be killed on the spot. In one culture is the condemned mutilated, and even his vocal cords are damaged so that the voice is unrecognizable to his friends and family. This is the punishment for people too obsessed with their own prestige.