Your cell phone knows where you have been. Every day, it logs location data—GPS coordinates, cell tower connections, Wi-Fi networks—creating a digital trail of your movements.

Prosecutors use this data to place defendants at crime scenes. But the same evidence can also prove the opposite: that you were somewhere else entirely when the crime occurred.

In this case, cell phone location data provided the alibi that led to a not guilty verdict. I am Tampa Criminal Defense Attorney Rocky Brancato. This post is part of our forensic series put out by the Brancato Law Firm, P.A., your Tampa criminal forensic evidence law firm.

The Case: Robbery Accusation with an Untouched Phone

Our client was accused of committing a robbery at a specific location. Police arrested him later at a different location, and his cell phone was left in the car. Here is what made this case unusual: the police never examined the phone.

That phone sat in evidence, untouched, potentially containing data that could either convict or exonerate our client. The question was whether to pursue it.

The Case Conference: Assessing the Risk

As Chief Operations Officer of the Hillsborough County Public Defender’s Office, one of my responsibilities was conducting daily case conferences with attorneys to provide strategic guidance on their cases. This case required exactly that kind of careful analysis.

The first part of our conference centered on the dangers of requesting the cell phone from evidence. If we examine it, the state will surely examine it—and there may be additional evidence against our client. Text messages, photos, search history, communications with co-defendants—any of these could make the case worse.

I sent the attorney back to the jail to scrutinize the client on this exact issue. We needed to know: Was he absolutely certain he was not at the location of the robbery? Did he understand that opening this door could backfire?

The client insisted he was not at the location of the crime. He was confident the phone would help, not hurt.

The Decision: Retrieving and Preserving the Evidence

Based on the client’s insistence, we filed a motion to obtain the phone from evidence. Then we retained a forensic data expert to examine it properly.

The expert used Cellebrite—a forensic extraction tool that preserves the phone and creates a bit-by-bit mirror image of all data. This is critical: proper forensic extraction maintains the integrity of the evidence and ensures nothing is altered or lost during analysis.

What the Phone Revealed

What we found changed the course of the case.

The phone had location services turned on. The forensic extraction revealed GPS data showing that the client’s phone was in an entirely different location at the time of the crime.

Not nearby. Not in the general area. A completely different location—miles away from where the robbery occurred.

The State’s Challenge: “Was It Even His Phone?”

Faced with this evidence, the prosecution challenged whether the phone actually belonged to our client. After all, if someone else was carrying the phone, the location data would be meaningless.

But the forensic extraction had captured more than just location data. The phone contained:

• Photos of the client
• Email accounts in his name
• Social media profiles linked to him
• Personal communications consistent with his identity

All of this evidence tended to prove the phone belonged to our client. The state’s challenge fell flat.

What This Case Teaches About Cell Phone Evidence

• Cell phone location data can provide a powerful alibi. If your phone was somewhere else, and you can prove it was your phone, you may be able to establish that you were not at the crime scene.
• Pursuing evidence the state has ignored is a calculated risk. Before requesting examination, scrutinize your client thoroughly. Make sure they understand the potential downside.
• Proper forensic extraction is essential. Tools like Cellebrite preserve the integrity of the evidence and capture data that might otherwise be missed or lost.
• Anticipate the state’s counterarguments. If you present location data, expect them to challenge phone ownership. Make sure the extraction captures evidence of ownership as well.
• Forensic data experts can make the difference. Without proper extraction and expert analysis, critical evidence may never come to light.

Types of Cell Phone Location Evidence

Frequently Asked Questions

Can cell phone location data prove I was not at the crime scene?

Yes. If your phone has location services enabled, it may contain GPS data, cell tower records, or app-based location logs showing where the phone was at specific times. If the phone was elsewhere during the crime, and you can establish the phone was in your possession, this can serve as alibi evidence.

What is Cellebrite and how does it work?

Cellebrite is a forensic extraction tool used to collect data from mobile devices. It creates a complete bit-by-bit mirror image of the phone’s contents, including deleted files, location data, messages, photos, and app data. This preserves evidence integrity and maintains chain of custody.

Should I ask the police to examine my phone if it could help my case?

This is a strategic decision that requires careful analysis. If you request examination, the state will likely examine the phone too—and may find additional evidence against you. Discuss this thoroughly with your attorney before making any decision.

How accurate is cell phone GPS data?

GPS data from smartphones is typically accurate within a few meters under good conditions. Cell tower data is less precise—it shows general area rather than exact location. A forensic expert can explain the accuracy and limitations of different types of location data.

What if the prosecution says the phone was not mine?

This is a common counterargument. A thorough forensic extraction will capture evidence of ownership—photos, email accounts, social media profiles, personal communications—that can establish the phone belonged to you. Anticipate this challenge and prepare accordingly.

Do I need a forensic data expert for cell phone evidence?

Yes. Proper forensic extraction requires specialized tools and expertise. An expert can preserve evidence integrity, interpret technical data, and testify about findings in court. Without proper extraction, critical evidence may be missed, corrupted, or ruled inadmissible.

Could Your Cell Phone Prove Your Innocence?

Cell phone evidence cuts both ways. The same data that prosecutors use to place defendants at crime scenes can also prove they were somewhere else entirely. But extracting and presenting this evidence requires strategic thinking, proper forensic tools, and expert analysis.

For over 25 years, I have defended clients against serious charges in Tampa Bay. I understand digital forensics, I know how to evaluate the risks and benefits of pursuing evidence, and I work with forensic data experts who can extract and analyze cell phone data properly.

Call (813) 727-7159 for a Confidential Consultation

The Brancato Law Firm, P.A.

620 E. Twiggs Street, Suite 205, Tampa, FL 33602

Serving Hillsborough, Pinellas, and Pasco Counties

Part of the Forensic Evidence Series

Related Case Studies: DNA Evidence Defense | Aggravated Child Abuse Defense | Forensic Pathologist | Fingerprint Evidence is Not as Reliable as You Think | When Brain Damage Explains Criminal Conduct | Your BAC at the Station is Not Your BAC Behind the Wheel | When Police Destroy Evidence They Do Not Get the Benefit of the Doubt | When a Confession is Not a Confession | When the Car–Not the Driver–Caused the Crash | The Injuries Were Real–But They Were Not From the Alleged Rape | Similar Is not The Same: How a Firearms Expert Kept Out Prejudicial Evidence

Related Pages

Tampa Child Abuse Attorney

Tampa Murder Attorney

Sex Crimes Attorney in Tampa

Why Expert Witnesses are Not Optional in Major Crimes Cases

When someone faces serious criminal charges—murder, sexual battery, aggravated child abuse—the difference between conviction and acquittal often comes down to one thing: expert witnesses. Expert witnesses are a crucial part of criminal defense cases in Tampa, Florida.

Not legal arguments. Not courtroom theatrics. Experts.

Throughout my career, I have seen cases where hiring the right expert and asking the right questions made what seemed impossible suddenly possible. Conversely, I have seen cases where the lack of proper expert support led to outcomes that could have been avoided.

Why Experts Matter in Major Crimes Cases

Prosecutors build their cases on expert testimony. They rely on medical examiners, Child Protection Team doctors, forensic analysts, and crime lab technicians to interpret evidence and present conclusions to the jury.

When those experts are wrong—or when their conclusions are incomplete—defendants pay the price. Without a defense expert to challenge the state’s analysis, the jury only hears one side of the story.

Consider these examples from my own practice:

• A forensic pathologist proved that a child’s injuries resulted from CPR, not abuse—murder charges dropped
• A DNA expert identified a mismatch the state’s lab missed—sexual battery case dismissed
• A medical expert showed that a child’s injury came from a birth defect, not inflicted trauma—aggravated child abuse charges dropped

In each case, the right expert made the difference between prison and freedom.

Types of Expert Witnesses in Criminal Defense

Experts Can Testify on Almost Any Topic

The table above covers common expert categories, but here is an important point: an expert witness can testify on virtually any topic that would help educate a jury.

For example, suppose a case centers around a defendant’s belief that someone was using Santeria or Voodoo to influence their actions. In that situation, an expert in those belief systems may be permitted to explain the religious practices and how practitioners understand spiritual influence—not necessarily to opine that the practitioner actually influenced anyone, but to help the jury understand the defendant’s mindset.

Similarly, experts in gang culture, military training, domestic violence dynamics, human trafficking patterns, or any other specialized area can provide context that helps a jury evaluate the evidence fairly. The key is whether the expert’s knowledge will assist the trier of fact in understanding something outside ordinary experience.

What an Honest Attorney Will Tell You

Here is something most attorneys will not say out loud: if the right experts cannot be retained, a good attorney may decline to take your case.

This is not because they do not want to help. It is because they know what a case like yours truly requires. They will not sign on unless they believe they can move the needle forward. That is the mark of an honest lawyer—not an uninterested one.

Recently, I turned down a high-paying child pornography case for exactly this reason. I knew the defense would require a forensic data expert to properly analyze the digital evidence. The family could afford my fee, but they could not cover the cost of the expert. Since the defendant himself was indigent, I advised them to let the Public Defender’s Office handle the case—because a capable public defender would have access to due process funds to hire that expert.

That was not an easy conversation. But it was the right one.

When Family Members Pay for Defense

Sometimes, the person paying for the attorney and expert costs is not the client but a family member. This is common in major crime cases, especially when the accused is incarcerated or financially unable to pay.

However, if an attorney learns that resources will not be available to properly defend the case—not just to pay their fee, but to cover essential expert costs—they may advise the family to let the Public Defender’s Office handle the case.

And that is not a slight.

The Public Defender’s Access to Expert Resources

In Florida, public defender eligibility is based on the adult defendant’s income—not the family’s resources. The threshold is 200% of the federal poverty guidelines. For someone who is incarcerated, their income may be zero, which typically qualifies them for representation.

Once appointed, the public defender’s office has access to due process funds—court-authorized funding to hire investigators, forensic experts, medical professionals, and mitigation specialists. These are the same types of experts a private attorney would retain.

In the hands of a capable public defender, those resources can be used as effectively as any private attorney could use them. Sometimes, the public defender’s office may actually have better access to certain experts than a private attorney working with limited client resources.

An honest private attorney will tell you this. A dishonest one will take your money anyway.

The Bottom Line

The best attorneys are honest about what it takes to do the job right. They do not sugarcoat the cost. They do not promise outcomes they cannot deliver. And they will not take your case if the foundation for real advocacy is not there.

That is not just legal strategy. That is integrity.

Frequently Asked Questions

How much do expert witnesses cost in criminal cases?

Expert witness costs vary widely depending on the type of expert and complexity of the case. Forensic pathologists, DNA experts, and mental health professionals may charge anywhere from $5,000 to $50,000 or more. Consequently, expert costs should be discussed early in the attorney-client relationship.

Can I get a public defender if I can afford an attorney but not experts?

Public defender eligibility in Florida is based on the defendant’s income—not the family’s. The threshold is 200% of the federal poverty guidelines. If you are incarcerated and have no income, you likely qualify. However, if you hire a private attorney, you may be able to request court funding for experts in some circumstances. Your attorney can advise you on the options available.

What if I cannot afford expert witnesses?

If you qualify for a public defender, the office typically has access to due process funds for experts. If you are paying for a private attorney, you should discuss expert costs upfront. Some attorneys may decline cases where essential expert resources are unavailable.

How do I know if my case needs an expert witness?

Cases involving scientific evidence, medical findings, technical analysis, or complex financial records almost always benefit from expert witnesses. Your attorney should evaluate your case early and identify which experts may be necessary to challenge the prosecution’s evidence.

Should I trust an attorney who promises results without mentioning experts?

Be cautious. In major crimes cases, promises of results without discussion of expert needs and costs may be a red flag. The best attorneys are upfront about what a proper defense requires—including the resources needed to challenge the state’s evidence.

Facing Serious Charges?

I am Tampa Criminal Defense Attorney Rocky Brancato. I have spent over 25 years defending clients against the most serious charges in Tampa Bay. Throughout that time, I have built relationships with forensic pathologists, DNA analysts, mental health professionals, and other experts who can make the difference in major criminal cases.

If you or a family member is facing serious charges, I will give you an honest assessment of what your defense will require—including expert costs. That conversation may not be easy, but it is the only way to build a real defense.

Call (813) 727-7159 for a Confidential Consultation

The Brancato Law Firm, P.A.

620 E. Twiggs Street, Suite 205, Tampa, FL 33602

Serving Hillsborough, Pinellas, and Pasco Counties

Related Case Studies: DNA Evidence Defense | Aggravated Child Abuse Defense | Forensic Pathologist | Fingerprint Evidence is Not as Reliable as You Think | Cell Phone Location Data Can prove You Were Not There | When Brain Damage Explains Criminal Conduct | Your BAC at the Station is Not Your BAC Behind the Wheel | When Police Destroy Evidence They Do Not Get the Benefit of the Doubt | When a Confession is Not a Confession | When the Car–Not the Driver–Caused the Crash | The Injuries Were Real–But They Were Not From the Alleged Rape | Similar Is not The Same: How a Firearms Expert Kept Out Prejudicial Evidence

Related Pages

Tampa Child Abuse Attorney

Tampa Murder Attorney

Tampa Sex Crimes Attorney

Why Expert Witnesses are Not Optional in Major Crimes Cases