"The Washing Away of Wrongs" is a book about forensic medicine in ancient China. It is an important work in forensic medicine written by Song Ci during the Ming Dynasty. The book records his experiences and observations in forensic practice. Presented in the form of case studies, it introduces methods for investigating and autopsying various abnormal deaths and techniques for inferring causes of death based on corpse evidence and physical signs. It holds significant significance in developing and studying ancient forensic medicine, providing valuable references for subsequent forensic practices. "The Washing Away of Wrongs" is considered an important classic in Chinese forensic medicine.