Which symptom of alcohol intoxication do officers commonly look for?

Officers commonly look for slurred speech as a symptom of alcohol intoxication because it is a direct and observable indicator of impaired motor function and coordination, which are affected by alcohol consumption. When a person consumes alcohol, it can hinder the brain's ability to control the muscles involved in speech, resulting in distortion or difficulty in pronunciation. Slurred speech signifies that the individual's cognitive and physical faculties are compromised, making it a key factor for officers when assessing whether someone may be under the influence of alcohol.

While increased energy, excessive laughter, and rapid heartbeat can occur with alcohol consumption or other factors, they are not as consistent or reliable as indicators of intoxication. Increased energy is not typically associated with alcohol, as it often causes sedation rather than stimulation. Excessive laughter may occur in some individuals but is not a definitive sign of impairment and can happen in various social contexts. A rapid heartbeat could be a reaction to various substances or stress rather than a clear indicator of alcohol intoxication. Thus, slurred speech stands out as a specific symptom that is closely linked to the effects of alcohol on the body.