California Security Guard Practice Exam

Signs of drug intoxication can vary greatly depending on the substance used, however, some general indicators include erratic behavior, physical agitation or twitching, excessive sweating, and nervousness. This can occur because many substances affect the nervous system and can lead to these physical manifestations. As such, noticing these signs can help security staff recognize possible intoxication. In contrast, a limp arm can be indicative of a physical injury or stroke, speaking loudly and in a high pitch can simply be a person's manner of speech, and drugs rarely increase abilities to reason and think rapidly, with many substances actually impairing these functions. Hence, among the choices given, 'signs of nervousness, body twitching and sweating' are most indicative of a person potentially being intoxicated by drugs.