If you are facing a sex crime charge in Tampa Bay, you might believe the case should only focus on the current allegation. However, Florida prosecutors have a powerful tool that can change everything. It’s called the Williams Rule, and it allows them to introduce prior, often unproven, allegations in Florida sex crimes cases to suggest you have a history of this behavior.
Even if you were never charged or convicted for a past claim, the prosecution can try to use it to paint a negative picture of you for the jury.
At The Brancato Law Firm, P.A., our Tampa-based defense firm has seen firsthand how Williams Rule evidence can derail a case. If it isn’t challenged aggressively, it can unfairly prejudice a jury. That’s why we treat these situations as a second case within your primary case. We launch a full investigation to expose the truth behind every old allegation the State wants to use against you.
The Williams Rule originates from a landmark court case and is now codified in Section 90.404(2)(a), Florida Statutes. This rule creates a critical exception to a core principle of American justice: that a defendant should not be judged based on past, unrelated “bad acts.”
Under specific circumstances, the Williams Rule allows prosecutors to introduce evidence of other crimes or acts to prove something other than bad character. These reasons include showing:
In Florida sex crime cases, prosecutors frequently use this rule to argue that a past allegation establishes a “pattern of conduct.” This makes the Williams Rule one of the most dangerous weapons in the State’s arsenal.
In theory, when a judge allows Williams Rule evidence, they give the jury a “limiting instruction.” This instruction tells the jurors they cannot use the prior allegation to conclude you are a bad person and therefore guilty.
But in reality, jurors are human.
Once they hear a damaging story from the past, it’s nearly impossible to ignore. It can color their perception of all other evidence in the trial. This is especially dangerous when the prior allegation is weak, for example:
As a result, the Williams Rule can create a distracting and prejudicial “trial within a trial,” shifting the jury’s focus from the actual charge they are there to decide.
The State can’t simply bring up a past event at trial. To introduce Williams Rule evidence in a Hillsborough, Pinellas, or any Florida county court, the prosecution must follow a strict procedure.
They are required to:
This last point is a critical balancing test. Even if the evidence seems relevant, a judge has the discretion to exclude it if they believe it will do more harm than good by inflaming or misleading the jury.
At The Brancato Law Firm, P.A., we never underestimate the impact of Williams Rule evidence. We attack it from every possible legal and factual angle. Our defense is a two-pronged approach.
First, we work to stop the evidence from ever reaching the jury. We file a motion in limine (a motion to exclude evidence) and argue that:
Even if a judge permits the evidence, we fight to limit its scope. We argue it should not become a “feature of the trial,” meaning the State’s time and witness count for the prior act should be strictly controlled.
Our work doesn’t stop with legal arguments. If the court allows the evidence, we launch a complete, independent investigation into the prior claim itself. We treat it like a brand-new case, and our process includes:
This deep-dive investigation often exposes weaknesses, falsehoods, or ulterior motives that can neutralize the Williams Rule evidence and, in some cases, damage the prosecution’s entire case.
A: Yes. The Williams Rule does not require that the prior allegation resulted in a conviction or even an arrest. As long as the prosecution can convince a judge it is relevant and meets the legal standard, it may be admitted. This is why an aggressive defense is critical.
A: To be “strikingly similar,” the prior act must share unique characteristics or a pattern with the current charge that makes them stand apart from other similar crimes. The acts can’t just be of the same general type; they must be alike in a way that points to a common identity or plan.
A: Williams Rule evidence is litigated in pretrial hearings, long before a jury is selected. This makes it essential to hire an experienced attorney early who can spot the issue and file the necessary motions to exclude the evidence. Waiting until trial begins is too late.
Attorney Rocky Brancato brings over 25 years of courtroom experience to every case. As the former second-in-command of the Hillsborough County Public Defender’s Office, he was responsible for training hundreds of lawyers in advanced trial strategy, evidence suppression, and complex sex crimes defense.
Now leading his private practice, he dedicates his skill and focus to defending clients across Florida. While our office is in Tampa, we proudly serve clients in:
If you’ve been charged with a sex crime and the State intends to use Williams Rule evidence against you in a Florida sex crimes case, do not wait. Your defense begins the moment you are charged. The time to build a strategy and protect your rights is now.
Call The Brancato Law Firm, P.A. for a confidential consultation.
Call Us: (813) 727-7159
Serving the Tampa Bay area