What is a common poison often associated with homicide?

Arsenic is a common poison often associated with homicide, particularly due to its historical usage in various murder cases. It is known for its lethality and for the fact that it can be difficult to detect in the body after ingestion, especially in smaller doses. Arsenic is a toxic metalloid that can cause severe health issues, including organ failure, and its slow-acting nature makes it a choice for discreet crimes.

While all the substances listed are toxic and have been used in criminal cases, arsenic stands out in the context of homicide due to its notoriety in literature and real-life cases. In contrast, cyanide acts more rapidly and is often chosen for its immediacy, making it less suited for scenarios where the perpetrator desires a delayed effect. Strychnine and mercury have been used for poisoning, but they are less commonly associated with homicide than arsenic due to their specific characteristics and the circumstances under which they are typically administered.

In summary, arsenic’s historical significance, characteristics of gradual poisoning, and its association with infamous murder cases contribute to its reputation as a common poison in these contexts.