During the one leg stand test, how long must a suspect hold their foot up?

The one leg stand test is a standardized field sobriety test believed to assess a person's balance and coordination, which can be affected by alcohol or drugs. For this test, the suspect must hold their foot up for a duration of 30 seconds. The rationale behind this time frame is that it allows the officer a sufficient amount of time to observe the suspect’s physical ability to maintain balance without excessive strain or fatigue impacting the performance. Holding the foot up for 30 seconds also provides a fair assessment window to identify signs of impairment, such as swaying, hopping, or using arm movements for balance. This duration is established in line with guidelines dictating proper procedure during sobriety testing, reinforcing its validity as a reliable indicator of a suspect's level of impairment.