What underlying principle supports the administration of field sobriety tests?

The administration of field sobriety tests is fundamentally supported by the principle of aiding in the detection of impaired driving. These tests are specifically designed to assess a driver's physical and cognitive abilities, which can indicate impairment due to alcohol or drugs. By evaluating behaviors such as coordination, balance, and the ability to follow instructions, law enforcement officers can gather evidence to determine whether a driver is fit to operate a vehicle safely.

Field sobriety tests serve as a practical tool for officers to make informed decisions on whether further action, such as an arrest or a Breathalyzer test, is necessary. The effectiveness of these tests hinges on their ability to provide objective observations that point towards a driver's level of impairment, thereby serving the primary goal of enhancing road safety by identifying and removing intoxicated drivers from the road.