"Erziehungshäftlinge" (reformatory inmates) wore E or EH in large black letters on a white square. They were made up of intellectuals and respected community members who could organize and lead a resistance movement, suspicious persons picked up in sweeps or stopped at checkpoints, people caught performing conspiratorial activities or acts and inmates who broke work discipline. They were assigned to hard labor for 6 to 8 weeks and were then released. It was hoped that the threat of permanent incarceration at hard labor would deter them from further mischief.