What physical sign may indicate someone is under the influence of a narcotic?

Flaccid muscle tone is a significant indicator that an individual may be under the influence of a narcotic. Narcotics, which include substances like opioids, often lead to decreased muscle tension and can cause relaxation of the body. This results in a state where the muscles may appear soft or relaxed, making it difficult for the person to exert physical strength or coordination. The presence of flaccid muscle tone suggests a depressant effect on the central nervous system, which is characteristic of narcotics.

In contrast, heightened awareness, excessive energy, and excitement are typically associated with stimulant substances rather than narcotics. Normal pupil size can also be misleading; while narcotics often cause constricted pupils (miosis), normal pupil size does not provide information confirming narcotic influence. Thus, identifying flaccid muscle tone in conjunction with other signs can help law enforcement and medical professionals determine the potential presence of narcotics in an individual's system.