What role does training play in HGN testing for officers?

Training plays a crucial role in HGN testing as it ensures that officers are equipped with the necessary skills to correctly administer and interpret the test. Proper training provides officers with a thorough understanding of the indicators of impairment that HGN displays, helping them to identify and evaluate the eye movements accurately. This enables officers to determine whether an individual is likely under the influence of alcohol or drugs, which is critical for making informed decisions during traffic stops.

Without adequate training, officers may misinterpret the signals or fail to conduct the test correctly, leading to inaccurate conclusions about a driver's impairment. Therefore, ensuring that officers receive comprehensive training enhances the reliability of HGN as a field sobriety test.