A poison is defined as a substance that when introduced to a living organism, may cause harm or even death. In forensics, chemistry is often employed to analyze blood and other substances found at a crime scene, to attempt to identify any poisons that may have been part of the cause of death. Poisons may include substances such as cyanide or arsenic, which are extremely harmful to any animal, and also substances such as iodine or sugars, which may be harmful to people with specific diseases such as diabetes or thyroid problems.
Poisons can be identified in many cases with the addition of a reagent that will react with the poison, and cause a change in color,smell, or may produce a precipitate or gas.
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| Several samples of an unidentified poison on a petri dish, with various indicator chemicals applied. |
This is a good post, it seems neat & organized. Maybe you could add a photo of a poison to go along with what's written.
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