Alcohol Screening or Screening Breath Test Devices (SBT)

Detecting Impaired Drivers: Alcohol Screening or Screening Breath Test Devices (SBT): "Alcohol Screening or Screening Breath Test Devices (SBT) The screening breath test device is designed to test the breath for the presence of alcohol, and requires the active participation of the motorist by blowing a sample of his/her breath into the device. The results of the test can be expressed in either a quantitative (digital) or qualitative (pass/warn/fail) reading. Screening breath test devices are typically used by police at the roadside to help determine if a motorist has consumed alcohol and, consequently, if probable cause for a DWI arrest exists. Digital screening test results are typically not introduced at trial to avoid confusion and comparison with the subsequent evidential breath or blood test results. SBT devices are also used in 'fitness for duty' applications for transportation vehicle operators; to test patients for sobriety in alcohol treatment facilities; and to test suspected underage drinkers."