Which road users must undergo breathalyzer tests?
Human factor: Alcohol, drugs, and medications
Drivers of vehicles must undergo breathalyzer tests when required at preventive checkpoints, as these tests are a mechanism to ensure road safety and minimize risks on public roads.
Explanation
**Vehicle drivers** must undergo breathalyzer tests when required at **preventive checkpoints**. These checkpoints are conducted to prevent alcohol and drug consumption while driving. Additionally, drivers must also take the test if they have been involved in an accident, show symptoms of being under the influence of alcohol or drugs, or have committed a traffic violation.
It is important to note that the law imposes penalties on those who refuse to take these tests when requested by security officers. Therefore, it is mandatory for drivers to undergo these tests in the mentioned cases.
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