Justice and Evidence: Forensic Science in 1628
A body is found in the cane fields outside Lingao. The dead man is a local laborer, his skull fractured, his belongings missing. Under Ming Dynasty law, the investigation would proceed along a well-worn path: round up the usual suspects, apply pressure until someone confesses, close the case. The transmigrators have a different idea. They want to let the body itself tell the story of how this man died, and they possess the knowledge to listen. But introducing evidence-based justice in a world that runs on confessions will prove far more difficult than any technological challenge they have yet faced.
The Confession Machine
The Ming Dynasty legal system is, by the standards of its era, not unusually cruel. It is, however, built on a foundation that modern jurists would find deeply troubling: the centrality of confession. In Ming jurisprudence, a criminal case is not properly resolved until the accused has confessed to the crime. This is not merely a procedural preference but a philosophical commitment rooted in Confucian ideals of moral self-examination and social harmony. A confession represents the offender's acknowledgment of wrongdoing, which in theory allows for moral rehabilitation and the restoration of social order. Without confession, there can be no genuine resolution, only the mechanical application of punishment to someone who may or may not be guilty.
The problem, of course, is that guilty people frequently decline to confess, and the Ming system's solution to this inconvenience is torture. The application of physical coercion to extract confessions is legal, regulated, and routine. Ming law specifies the instruments that may be used, the number of blows that may be administered, and the intervals at which torture must be suspended to prevent the death of the suspect before trial. These regulations are sometimes observed and sometimes not, depending on the diligence of the presiding magistrate and the social standing of the accused. A wealthy suspect with connections might endure nothing worse than uncomfortable kneeling. A poor suspect without protectors might be beaten until he confesses to anything his interrogators suggest, truthfully or not.
The result is a system that produces confessions with impressive efficiency and justice with considerably less reliability. False confessions are endemic, because the incentive structure of the system makes confession rational even for the innocent. A suspect who maintains his innocence faces continued torture; a suspect who confesses faces punishment but at least the torture stops. The magistrate who extracts a confession closes his case file and demonstrates his effectiveness to his superiors. Everyone in the system has reasons to reach a resolution, and the truth is not always one of those reasons.
The transmigrators find this system morally repugnant and practically unreliable, but they also recognize that they cannot simply abolish it by decree. The confession-centered model of justice is deeply embedded in Chinese legal culture, supported by centuries of philosophical justification and institutional practice. The local population expects magistrates to extract confessions. Victims' families demand confessions as proof that justice has been done. Even the accused themselves sometimes view confession as a legitimate and expected part of the process. Replacing this system requires not just new procedures but a fundamental shift in how an entire society thinks about guilt, evidence, and the purpose of criminal investigation.
Washing Away of Wrongs
The transmigrators' effort to introduce forensic investigation is aided by an unexpected ally: China's own history. In 1247, the Song Dynasty official Song Ci published a remarkable text called Xiyuan Jilu, usually translated as "The Washing Away of Wrongs" or "Collected Cases of Injustice Rectified." This book is widely recognized as the world's first systematic treatise on forensic medicine, predating European equivalents by several centuries. Song Ci's text describes methods for examining corpses to determine the cause of death, distinguishing murder from suicide and accident, detecting poisoning, estimating time of death, and even identifying suspects based on physical evidence.
The Xiyuan Jilu represents a tradition of evidence-based investigation that existed within Chinese legal practice long before the transmigrators arrived. Song Ci advocated examining bodies carefully rather than relying solely on testimony. He described how to use vinegar and other substances to reveal bruises on decomposed flesh. He explained how bone injuries differ depending on the weapon used. He catalogued the signs of strangulation, drowning, burning, and poisoning with a thoroughness that would impress a modern medical examiner. His work was not an isolated curiosity; it was an official handbook, required reading for magistrates responsible for investigating suspicious deaths.
The transmigrators seize upon the Xiyuan Jilu as a bridge between their modern forensic knowledge and the Chinese legal tradition they must work within. Rather than presenting their methods as foreign innovations that reject Chinese practice, they frame them as extensions and refinements of Song Ci's approach. This is not entirely dishonest. The principles are genuinely the same: look at the evidence, examine the body, let physical facts guide the investigation rather than relying on coerced testimony. The transmigrators are adding modern medical knowledge and scientific method to a tradition that already valued empirical observation, and by invoking Song Ci's authority, they give their innovations a legitimacy that novelty alone could never provide.
The Science of the Dead
The forensic capabilities that the transmigrators bring to criminal investigation are modest by twenty-first-century standards but revolutionary by seventeenth-century standards. They understand anatomy at a level that no Ming Dynasty physician can match, because they have studied from textbooks that incorporate four centuries of accumulated medical knowledge. They can perform autopsies with a precision that reveals details invisible to traditional examination. They understand the physiology of death well enough to estimate time of death from body temperature, rigor mortis, and decomposition patterns. They can distinguish between wounds inflicted before death and after death, between injuries caused by different types of weapons, between natural death and poisoning.
Beyond forensic medicine, the transmigrators introduce investigative techniques that have no precedent in Ming practice. They understand the concept of crime scene preservation, the idea that the location where a crime occurred contains evidence that can be destroyed by careless handling. They know to look for footprints, blood spatter patterns, trace materials, and other physical evidence that traditional investigators would overlook or dismiss. They understand the importance of witness interviews conducted without leading questions, of documenting evidence before drawing conclusions, of maintaining a chain of custody for physical evidence so that it cannot be tampered with or challenged.
The transmigrators also bring rudimentary capabilities in document analysis and ballistics. They can examine handwriting to determine whether a document was written by the person who claims to have written it. They can analyze the characteristics of bullet wounds and match them to specific types of firearms, a capability that becomes increasingly relevant as their own weapons proliferate through the region. They can test substances for common poisons using simple chemical reactions. None of these techniques is as sophisticated as its modern equivalent, but in a context where the prevailing investigative method is beating suspects until they talk, even rudimentary forensics represents a quantum leap in the quality of criminal investigation.
The Clash of Systems
Introducing evidence-based investigation does not go smoothly, because it threatens interests and assumptions that are deeply entrenched in the existing power structure. Local magistrates and their staff have built their careers on the confession-based system. They know how to extract confessions efficiently. They have developed skills in reading suspects, applying pressure, and constructing narratives that satisfy their superiors. Forensic investigation renders these skills irrelevant and replaces them with technical competencies that the existing judicial establishment does not possess. It is not surprising that many local officials resist the new methods, viewing them as an implicit criticism of their competence and a threat to their authority.
The resistance is not merely self-interested; it also reflects genuine philosophical disagreement about the purpose of criminal justice. In the Confucian legal tradition, the goal of criminal proceedings is not merely to determine guilt but to restore social harmony through the moral transformation of the offender. Confession serves this goal because it represents the offender's acceptance of responsibility and his submission to the moral order. A conviction based purely on physical evidence, without the offender's acknowledgment of wrongdoing, feels incomplete to many Chinese jurists, a mechanical determination of fact that misses the deeper moral dimension of justice. The transmigrators, steeped in the Western legal tradition's emphasis on rights, evidence, and procedural fairness, struggle to appreciate this perspective, and their failure to engage with it sympathetically sometimes undermines their reform efforts.
The local population's relationship with the new justice system is equally complex. On one hand, evidence-based investigation protects the innocent from false confession, and this protection is valued by everyone who has seen a neighbor or family member tortured into admitting a crime he did not commit. On the other hand, evidence-based investigation sometimes fails to produce the clear resolution that communities demand. A murder case in which the evidence is inconclusive and no one is convicted feels, to the victim's family and neighbors, like a failure of justice, regardless of how scrupulous the investigation was. The confession-based system, for all its flaws, at least reliably produced someone to blame and punish. The evidence-based system sometimes produces only uncertainty, and uncertainty is not what grieving families want.
Building a Justice Infrastructure
The transmigrators gradually construct a legal system that blends elements of modern and traditional practice. At its foundation is the principle that physical evidence takes precedence over testimony, a reversal of the traditional hierarchy that places confession above all other forms of proof. But this principle is implemented within a procedural framework that accommodates Chinese legal culture. Suspects are still interviewed and given opportunities to confess, but confession is not required for conviction and cannot be extracted through torture. Magistrates are trained in basic forensic principles and required to examine crime scenes personally before forming conclusions. Expert witnesses, typically transmigrators with medical or scientific training, provide testimony on forensic evidence that the magistrate may not be qualified to evaluate independently.
The training of local judicial personnel is perhaps the most important and most difficult aspect of the reform. The transmigrators cannot staff every court with a modern-trained investigator; there are simply not enough transmigrators with relevant expertise. Instead, they must train local officials and their staffs in forensic methods, a process that requires overcoming not only ignorance but active resistance. The training programs begin with the Xiyuan Jilu, using Song Ci's text as a starting point that local officials already respect, and gradually introducing modern concepts as extensions of Song Ci's principles. This pedagogical strategy is effective because it frames the new methods as improvements within a recognized tradition rather than replacements imposed from outside.
The transmigrators also establish what amounts to a forensic laboratory, a dedicated facility where evidence can be examined, tested, and preserved. This laboratory is primitive by modern standards, equipped with magnifying glasses rather than microscopes, chemical reagents rather than DNA analysis kits, and anatomical knowledge rather than imaging technology. But it represents an institutional commitment to evidence-based investigation that has no parallel in seventeenth-century China or, indeed, in seventeenth-century Europe. The laboratory becomes a training facility as well as an investigative resource, a place where local officials can observe forensic techniques in practice and gradually develop confidence in methods that initially seem foreign and suspect.
Justice as Legitimacy
The transmigrators' investment in forensic science and evidence-based justice serves purposes beyond the resolution of individual criminal cases. A justice system that is perceived as fair and effective is one of the most powerful sources of political legitimacy available to any government. The late Ming judicial system, corrupt and arbitrary, is one of the reasons why popular loyalty to the dynasty is evaporating. Communities that have watched magistrates convict the innocent and acquit the guilty based on bribes and connections have little reason to feel that the Ming government deserves their allegiance. A system that convicts based on evidence and protects the innocent from false accusation builds a fundamentally different relationship between government and governed.
The transmigrators understand this connection between justice and legitimacy because they have studied it in history books. They know that the Roman legal system was one of Rome's most enduring contributions to civilization, outlasting the empire itself by centuries. They know that the English common law tradition, with its emphasis on evidence and procedure, became a foundation of political stability that survived revolutions and civil wars. They know that functioning justice systems are not luxuries that prosperous societies can afford but necessities that make prosperity possible. A merchant will not invest in a community where his contracts cannot be enforced. A farmer will not improve land that can be seized without due process. A craftsman will not innovate if his inventions can be stolen with impunity. Justice is infrastructure, as essential as roads or harbors, and the transmigrators build it with the same deliberate, systematic approach they apply to their other infrastructure projects.
The forensic science story in "Erta Founding" is ultimately a story about the relationship between knowledge and power. The ability to determine who killed whom and how is not merely a technical capability but a form of authority. The magistrate who can examine a body and determine the cause of death without relying on confession possesses a power that is both more reliable and more legitimate than the power of the torturer. The transmigrators' forensic knowledge does not just solve crimes; it transforms the nature of justice itself, shifting its foundation from coercion to evidence, from power to truth. In a world where truth has been whatever the most powerful person in the room says it is, this shift is nothing less than revolutionary.