Song Ci was a famous forensic scientist in Southern Song Dynasty. According to the current scientific terms, Song Ci is famous mainly for his criminal forensic skills. There is a saying in Song Ci "Record of Injustice": Prison affairs are not more important than opening up, opening up is not more important than first love, and first love is not more important than investigation. This sentence emphasizes the importance of inspection and the extraction of effective trace material evidence at the crime scene. If you are interested, read The Collection of Grievances, a valuable book on criminal techniques.
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