One of the first examples of forensic science solving a murder appears in a book called The Washing Away of Wrongs, published in 1247 by Song Ci, a Chinese coroner and detective....Metallic green flies descend in a chaotic swarm and then, as if collectively alerted, land on one sickle, crawling all over it as the other sickles lie undisturbed. The magistrate knew traces of blood and human tissue attract blowflies....But forensic science advancements are really just about finding the latest way to draw a blowfly to a bloody sickle. The goal is the same as it was in thirteenth-century rural China: cellular certainty establishing guilt.
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