Field sobriety tests are used by police officers to establish probably cause to arrest you for driving intoxicated or impaired. These tests can include Horizontal Gaze Nystagmus, Walk-and-Turn, and the One Leg Stand, among others. Unlike refusing the chemical test, refusing to participate in field sobriety tests does not carry a specific penalty. The officer may decide to arrest you even without administering field sobriety tests, but just know that you do have the right and the option to refuse the tests.