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Concept
Incapacitating agent
Summary
Incapacitating agent is a chemical or biological agent which renders a person unable to harm themselves or others, regardless of consciousness.
Lethal agents are primarily intended to kill, but incapacitating agents can also kill if administered in a potent enough dose, or in certain scenarios.
The term "incapacitation," when used in a general sense, is not equivalent to the term "disability" as used in occupational medicine and denotes the inability to perform a task because of a quantifiable physical or mental impairment. In this sense, any of the chemical warfare agents may incapacitate a victim; however, by the military definition of this type of agent, incapacitation refers to impairments that are temporary and nonlethal. Thus, riot-control agents are incapacitating because they cause temporary loss of vision due to blepharospasm, but they are not considered military incapacitants because the loss of vision does not last long. Although incapacitation may result from physiological changes such as mucous membrane irritation, diarrhea, or hyperthermia, the term "incapacitating agent" as militarily defined refers to a compound that produces temporary and nonlethal impairment of military performance by virtue of its psychobehavioral or CNS effects.
In biological warfare, a distinction is also made between bio-agents as Lethal Agents (e.g., Bacillus anthracis, Francisella tularensis, Botulinum toxin) or Incapacitating Agents (e.g., Brucella suis, Coxiella burnetii, Venezuelan equine encephalitis virus, Staphylococcal enterotoxin B).
The use of chemicals to induce altered states of mind in an adversary dates back to antiquity and includes the use of plants of the nightshade family (Solanaceae), such as the thornapple (Datura stramonium), that contain various combinations of anticholinergic alkaloids. The use of nonlethal chemicals to render an enemy force incapable of fighting dates back to at least 600 B.C. when Solon's soldiers threw hellebore roots into streams supplying water to enemy troops, who then developed diarrhea.
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