**Traffic officers** have the authority to conduct breathalyzer tests on certain drivers. These tests are applied to drivers who have been **reported for committing a traffic violation**. This means that if a driver is caught violating any traffic rule, the officers can request that they undergo a test to detect the presence of alcohol or drugs in their system.

Additionally, the tests are also conducted in other situations, such as when a driver is involved in a traffic accident, shows symptoms of being under the influence of alcohol or drugs, or during preventive checks. However, the key here is that drivers reported for specific violations are a clearly identified group for these tests.

It is important to note that refusing to take these tests when requested by the officers can result in fines and additional penalties. Therefore, it is essential for drivers to understand the importance of complying with these requests to avoid more severe legal consequences.