A poison is a substance which when administrated, inhaled or ingested is capable of causing deleterious effect on the human body. The circumstances may be suicidal, homicidal or accidental. A suicidal poison of choice must be cheap, easily available and capable of being administered is any food or drink. It must have pleasant taste and no repulsive smell. The action of poison may be local, remote, combined and general. The preparations of iron salt, which are largely used in medicine are mostly prepared from sulphate, carbonate and perchloride of iron. When these salt are administered in large doses, they produce poisonous symptoms and may even cause hemosiderosis as a manifestation of chronic poisoning. Iron sulphate (ferrous Sulphate, FeSo4) is commercially known as green vitriol of sulphate. It forms green, efflorescence monosymmetric crystals on exposure to the atmosphere. It is freely soluble in water. It is used in making blue ink and dyes, but sometimes as a pesticide. In this case study, we'll talk about a woman who died after consuming an corrosive drug at home. For medico-legal purposes, it was critical to correlate autopsy results with medical care records and the place of the incident.