《明史·志·卷七十一》
内行厂并且创造新例，对囚犯不论轻重一律先施杖刑，然后判子子孙孙永远戍边。有的人还用大枷枷着颈项发遣，枷的重量有达一百五十斤的，犯人戴不了几天就丧命。
且创例，罪无轻重皆决杖，永远戍边，或枷项发遣。枷重至百五十斤，不数日辄死。
The Nei Ban Shi Factory also created a new precedent: regardless of the severity, all prisoners must first be beaten, and then all of their descendants would be sentenced to eternal border patrol. Some people were also sent to exile with heavy cangues around their necks, some of which weighed up to 150 catties. The prisoners could not survive this for more than a few days.