Preservation of brain is not required in -: (A) Alkaloid poisoning, (B) Organophosphorus poisoning, (C) Volatile organic poisoning, (D) Heavy metal poisoning
Answer is D. Brain need not be preserved in heavy metal poisoning as it is not seen in brain tissue. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 62.