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Erasistratus discovered that he can if someone is lying by checking the speed of pulse
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A man named Duan Yu had learned how to distinguish the difference from strangling and drown with the use of medicine.
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The First use of bullet comparison was used to catch a murderer by making molds of the bullet to find out what type of gun was used for the murder.
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Charles E Waite is the first man to catalog data about weapons.
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The First FBI Crime lab is created.
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The FBI introduced the beginning ofits automated Fingerprint identification System (AFIS).