In Florida, the interaction between an acquittal in a criminal trial and a Violation of Probation (VOP) is governed by the principle of collateral estoppel—but it is a much narrower shield than many defendants realize.

The most important case for you to know is Kroener v. State (Fla. 1990) (and its predecessor State v. Justice).

1. The "Timing Rule"

The legal outcome depends heavily on when the VOP hearing occurs relative to the trial:

• VOP Hearing FIRST: If the judge finds you in violation of probation before your criminal trial, that finding stands even if a jury later finds you "not guilty." Because the VOP was already decided based on a lower burden of proof, the later acquittal does not undo it.

• Trial FIRST (Acquittal): If you are acquitted at trial first, and the state later tries to revoke your probation based on the exact same facts, the doctrine of collateral estoppel can sometimes be used to block the VOP.

2. Collateral Estoppel: The Shield

Collateral estoppel prevents the state from re-litigating a factual issue that has already been decided in your favor. However, for this to work in a VOP after an acquittal, your attorney must prove:

• The identical issue was litigated in the criminal trial.

• The "not guilty" verdict was a conclusive finding that you did not commit the act.

The Catch: If the jury acquitted you simply because the state didn't meet the "beyond a reasonable doubt" standard, the state will argue they can still meet the "preponderance of evidence" (51%) standard in a VOP hearing. Collateral estoppel usually only works if the acquittal was a Judgment of Acquittal (JOA)—where the judge rules that the evidence was legally insufficient for any reasonable person to find you guilty.

3. Key Differences in Evidence

Even if you are found not guilty, a VOP hearing is "informal" under Florida Statute § 948.06. This means:

• Hearsay: In a VOP hearing, hearsay is admissible (though it cannot be the only evidence used). It is usually excluded in a criminal trial.

• No Jury: Only a judge decides a VOP. A judge may find a witness credible whom a jury did not believe.

Summary Table: Acquittal vs. VOP