Forensic Daily #12: On Hair

Q: how useful it is if we found a hair from a crime scene? Will it tie us to a unsup?
A: yes, even put the unsup to jail! In general, each person loses 100 human hair everyday. It is easy to leave trace at the crime scene, or through physical contact. And each strand of hair is like a database that stores with data that allows scientists or experts to trace back up to 6 months ago. With each hair has a constant growing rate (in general) of 1 inch each month, it would help unlock data like medical condition, as well as the use of drugs too! A lot can pull out from the head of a hair, such as but not limited to: dietary habits, nutrition info, drugs consumption, diseases. With these specific info, linking a person to a crime scene is not as hard.

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