For SFSTs to be legally valid, the officer must have probable cause to suspect impairment (usually due to erratic driving or other signs). Additionally, the officer is required to inform the subject of the legal consequences, such as possible arrest for DUI or refusal penalties, before conducting the tests.
Officers must maintain a neutral and objective demeanor when conducting SFSTs. Ethical conduct involves ensuring the tests are administered fairly and without bias, so the results can be trusted in legal proceedings.
If a subject refuses to take the SFSTs, the officer should document the refusal and may proceed with other steps, such as administering a breathalyzer test, depending on local laws. Refusal may lead to legal consequences such as a license suspension.
Accurate documentation of SFST results is crucial because they may be used as evidence in court to demonstrate the subject's impairment. Inaccurate or incomplete documentation can undermine the credibility of the results and the officer's testimony.
If the officer fails to follow proper SFST procedures, such as administering the tests incorrectly or failing to document the results properly, the test results could be deemed inadmissible in court. This can weaken the case against the subject and result in legal challenges.
