What a Phone Extraction Does and Does Not Show
Tools like Cellebrite and GrayKey pull an enormous amount of data off a phone, but the report the State hands the jury is a selected slice. What the analyst chose to include, and what they left out, shapes the story, and that selection is fair game.
I began my career as an Assistant Public Defender in Florida’s Thirteenth Judicial Circuit, and I am one of only six attorneys in Florida, and just over a hundred in the country, recognized as a Forensic Lawyer-Scientist by the American Chemical Society. On the breath and blood chemistry I am trained in, I read the raw data myself. On DNA, fingerprints, cell-site, digital, and medical evidence, I bring in the right expert and cross-examine the State’s analyst on method, on chain of custody, and on the assumptions hiding inside the conclusion. Learn more about my background.
Deleted Data, Metadata, and What Was Left Out
Deleted messages and files can often be recovered, timestamps and metadata can reveal a different sequence of events than the State suggests, and the missing context is sometimes exactly what clears a person.
The Warrant and the Scope of the Search
Under Riley v. California, 573 U.S. 373 (2014), police generally need a warrant to search a phone, and that warrant has limits on what they can look for and where. Evidence pulled outside those limits can be challenged and, in the right case, suppressed.
How Extractions Work
Not all phone extractions are the same. A logical extraction copies the data the phone makes readily available, a file-system extraction reaches deeper into the device’s structure, and a physical extraction captures the rawest image of the storage, including areas where deleted material can linger. What the examiner was able to pull, and what method they used, shapes what is and is not in the report, and that is rarely explained to the jury.
The State’s report is then a curated selection from all of that data. The choice of what to highlight and what to omit is itself an argument, and the full extraction often tells a fuller and very different story.
Whose Hands Were on the Device?
A phone is not a person. Devices are shared, accounts are logged in on more than one device, cloud services sync messages and files across hardware automatically, and apps generate artifacts on their own without anyone touching the screen. Showing that data exists on a device is not the same as proving who put it there or who was holding the phone at a given moment, and attribution is frequently the weakest link in a digital case.
Location data carries its own traps. A GPS fix, an app’s reported location, and a cell connection are different things with different accuracy, and each comes with a margin of error that a careful examiner can measure and a jury deserves to hear.
How I Challenge Digital Evidence
I bring in a digital-forensics examiner, get the full extraction rather than the State’s report, test the chain of custody, and hold the analysis to the Daubert standard in section 90.702, while pressing the Fourth Amendment limits on how the device was searched.
Cloud Data, Backups, and Proving Who Wrote It
Modern cases rarely stop at the phone in the evidence locker. The same messages and files often live in cloud backups, on linked devices, and in a provider’s own records, and those copies can include context, or timestamps, that the device alone does not. We make sure the full set is preserved and produced, not just the slice the State chose.
There is also the question of authentication. To use a message against you, the State has to show you wrote it, and a name on an account is not proof of the hand on the keyboard. Shared logins, spoofing, and synced devices all create doubt about authorship that a careful defense can press.
The takeaway is that a phone full of data is not the same as a case. Between selective reporting, recoverable context the State left out, real questions about who authored a given message, and the limits on how a device could lawfully be searched, there are usually several independent ways to test what the State claims a phone proves. We work through each of them, because in case after case the device tells a fuller and more innocent story once someone looks past the summary the State prepared.
Common Questions
Can deleted data really be recovered?
Often, yes. Deleted messages, files, and metadata can frequently be recovered by a qualified examiner, and that recovered material sometimes contains the very evidence that helps the defense.
Do police need a warrant to search my phone?
Generally yes. Under Riley v. California, searching a phone usually requires a warrant, and the warrant limits the scope of the search. How the phone was searched is worth examining closely.
Is everything on the State’s report the full picture?
No. An extraction report is a selected presentation of the data. The full extraction can show context the State left out, which is why an independent review matters.
Can a digital-forensics expert help my case?
Yes. A defense examiner can recover omitted data, read the metadata, and test how the device was searched, any of which can change the case.
This page is general information about Florida law, not legal advice, and it does not create an attorney-client relationship. Florida applies the Daubert standard for expert testimony under section 90.702, Florida Statutes. The reliability of forensic evidence depends on the methods, the analysts, and the facts of each case, and the science and the law can change, so confirm anything here with counsel about your own situation. Every case is different, and past results do not guarantee a similar outcome.
