What are the four major unjust cases in the history of China?

Tongzhou unjust case Shen Beishan unjust case

The unjust case of nine strangers

Ling Guixing, a rich man in Guangdong, listened to the story of fortune telling. His middle cousin Liang Tianlai's stone house hindered his family's geomantic omen, and tried his best to get it. He was encouraged by the left and right villains to kill seven bodies and eight lives (one was pregnant). Liang Tianlai complained from the county, to the yamen, to the teacher and to the governor, but was bought by Ling. Instead, he killed the beggar who was courageous. In desperation, he had to sue the imperial edict to rehabilitate his grievances. During the Yongzheng period, it was also practical.

On the first night of Shen Baozhen's second year as Governor of Liangjiang, a healthy man was killed in Nanjing Huapailou. The general office of Jiabao Bureau was reprimanded for flood observation and arrested the murderer within a time limit. Hu Desheng, a close friend, volunteered. In fact, this is a mess. Xi Zhi, the abbot of Daci Temple, who is the suspect, is called the mastermind. Because the butcher Cai Yuan was kind to him, he was assigned as a killer and used a butcher knife as a weapon. He also threatened the tofu shop owner Wang Laoshi and his son Niu Er to testify. Shen blindly wanted to calm down the atmosphere, so he beheaded them in a daze. Ten years later, the Garbo Bureau of Investigation tried to find out the culprit, but the new governor wanted officials to protect each other. I am glad to know that the monk's disciple Dakong refused to give up, and he sued the imperial edict, so he had to reverse his case.