Which of the following indicators might suggest someone has used a CNS stimulant?

The identification of indicators associated with the use of a central nervous system (CNS) stimulant is important for law enforcement and public safety officers. In this context, scarring or erosion in the nasal area is a significant indicator of stimulant use, particularly those that are commonly inhaled, such as cocaine. This type of substance use can lead to physical changes in the nasal passages and surrounding areas due to repeated exposure to the drug and the method of ingestion.

Individuals who misuse CNS stimulants often exhibit behavioral and physiological changes that are the opposite of those associated with depressants. For instance, they may display heightened energy levels, alertness, and reduced fatigue, which contrasts with calmness or relaxation. The other indicators listed—calmness, frequent yawning, and slow movements—are typically associated with depressants or fatigue, rather than stimulants.

Thus, recognizing scarring or erosion in the nasal area serves as a clear and relevant physical sign indicative of stimulant use, which could aid an officer in assessing a situation appropriately.