To that end he placed the convicts into seven classes, ranging from those who were granted ticket - of - leave for good behavior to those who were sentenced to hard labor in chains.
Tādēļ viņš iedalīja katordzniekus septiņās grupās, sākot ar tādiem, kas par labu uzvedību bija nosacīti atbrīvoti, līdz tādiem, kas, važās iekalti, veica spaidu darbus.