What is the primary purpose of a lethal injection?

The primary purpose of a lethal injection is designed specifically to cause bodily harm or death, usually as a means of executing individuals convicted of serious crimes. This method is employed by certain jurisdictions as a method of capital punishment. The process involves administering a series of drugs that systematically lead to the cessation of bodily functions, ultimately resulting in death.

In contrast, administering medical treatment seeks to heal or alleviate medical conditions, which fundamentally contradicts the intent of a lethal injection. Similarly, using injections to control agricultural pests is related to pest management rather than human execution. Finally, while anesthesia is provided before surgery to induce a state of unconsciousness and prevent pain, it serves a healing purpose rather than an ending one, distinguishing it from the intent of lethal injections.