The No-Techs were a culture who didn't believe in the use of technology, believing that it has stolen the soul of humanity.
They lived an Amish-like existence, having been granted a section of land for them to live free of technology. They would shelter anyone they perceived to be escaping "the shackles of technology". If any government employee wished to enter their territory, they would need a legal warrant to do so. According to Agent Bennet, "they have a reputation for being craftier than you'd expect". The local government and judicial system did not see any fugitive in the No-Tech land as a threat as "those fugitives won't be causing any trouble".
They refer to anyone who lives outside of their land as "tech-dwellers".