Category: Evidence · Statute: F.S. 92.57 · Source: Florida Legislature
Understanding Polygraph (Lie Detector) Test in Florida
In Florida, a polygraph test, commonly known as a lie detector, measures physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a person answers a series of questions. Under Florida case law, the results of a polygraph examination are highly controversial and are generally inadmissible as evidence in a criminal trial because they are not considered scientifically reliable. However, there is a major exception: if both the prosecution and the defense enter into a written stipulation before the test is administered, agreeing that the results will be admissible, a Florida court may allow them into evidence.
Beyond trials, polygraphs serve specific administrative and supervisory roles in Florida's justice system. Under Florida Statute Section 92.57, lie detector tests are utilized in pre-employment screening for law enforcement agencies. Additionally, Florida courts frequently mandate regular polygraph testing as a compulsory condition of probation or community control for registered sex offenders. While a failed probation polygraph cannot be the sole basis for a new criminal charge, it can be used by probation officers to monitor compliance and investigate potential violations of supervision terms.
How Polygraphs Affect Bail and Pretrial Release
During the initial pretrial phase, a defendant cannot be forced to take a polygraph test as a condition of securing a bail bond. However, in high-stakes negotiations before formal charges are filed, a defense attorney may voluntarily offer a client’s passed polygraph results to prosecutors or a judge. While not binding, these favorable results can sometimes persuade the state to reduce charges, lower the requested bail amount, or agree to more lenient pretrial release conditions during a bond modification hearing.