Before initiating a traffic stop, law enforcement officers typically observe drivers for signs such as swerving, reckless driving, speeding, or other traffic violations, which may lead to suspicions of potential intoxication. In certain cases, traffic stops may also occur when officers notice issues related to vehicle control or exceptionally slow driving, raising concerns about possible DUI. Following the traffic stop, officers proceed to assess the driver for potential indications of impairment, including bloodshot eyes, facial flushing, slurred speech, impaired coordination, confusion, or limited mobility. Additionally, they actively search for any odors of drugs or alcohol within the vehicle and inspect for the presence of open containers. It is worth noting that although some of these physical symptoms may be related to medical conditions unrelated to intoxication, officers, in accordance with Arizona law, have the authority to make an arrest if they believe there are signs of intoxication.