Controlling such a population was not the same task as it had been before. During each pole’s summer, when the sun did not set, humans were let out onto the planet’s surface in laminate environment suits. These were an early form of today’s isolation laminates worn by Emissaries, and they did far less. The wearer was protected from the unfinished atmosphere outside, and infosystems in the helmet kept the AI in control of what the occupant saw and heard.
What originally started as an environment suit for humans being let outside soon became a population control mechanism. A misbehaving colonist could be locked into one of these suits and made to act as an internal police force. The suits could simulate almost any sensation to the wearer’s flesh, which made it an efficient system for re-training.
The colonists’ ramped-up sex drive and lack of almost any other means of entertainment meant that the AIs had a convenient reward system. Pain is always an effective punishment, but the AIs learned how to prey on a person’s fears and desires. What we’ve seen in the present day suggests that even a limited time in the isolation suits completely changes a person. And this was important, because if the AIs were going to start actual farms on the equator, they’d need to be able to trust the farmers. --A Blagger's History of Torei