In addition to samples taken from a body, what other information or evidence could point to poisoning as the cause of death?

Explanation:

In addition to the biological samples taken from the body like viscera, blood, urine, bones and others. The non-biological samples like containers containing position, syringe, pills, bottles and others found in the close proximity or in the crime scene must also be collected. The non-biological samples can be directly related to the kind of poison taken or given to kill the victim and can be useful in determining the cause of death.

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explanation:

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."