Which factors can influence the accuracy of the SFST?

The accuracy of the Standardized Field Sobriety Test (SFST) can be influenced by various factors, including medical conditions, age, and environmental circumstances. Individuals with certain medical conditions may exhibit physical signs that mimic intoxication, such as balance issues or impaired coordination, which can skew the results of the test. Age is also a critical factor; as a person ages, their physical abilities, such as balance and reaction time, may decline, affecting their performance on sobriety tests. Additionally, environmental variables, such as the surface on which the test is administered (e.g., uneven ground) or distractions from surroundings (like noise or crowd presence), can impact a person's ability to perform the tasks required in the SFST. Recognizing these influences is essential for interpreting the results of the test accurately and ensuring a fair assessment.