A TikTok expert witness analyzes how the platform actually works, meaning the For You page algorithm, content distribution, account attribution, and video evidence, and explains it to courts through reports, depositions, and testimony. I provide that analysis in litigation nationwide, with active engagements involving TikTok platform mechanics and 20+ cases.
In my TikTok engagements, the recurring subjects are:
With TikTok serving more than 200 million Americans and 7.5 million U.S. businesses by its own announcement, these questions now appear across nearly every litigation practice area, and courts expect them to be answered with platform-specific analysis rather than generic social media commentary.
Because TikTok distributes content through an interest graph, not a social graph. The For You page ranks videos for each viewer individually based on signals TikTok has publicly described, such as watch time, completion, shares, and follows, which means follower counts do not predict reach and every feed is different. Experts who reason from follower-based platforms routinely get TikTok reach analysis wrong, and opposing counsel who understand the difference can take those opinions apart.
The platform's structure also changed recently. Since January 23, 2026, TikTok's U.S. operations have been run by TikTok USDS Joint Venture LLC, a majority American-owned entity, with U.S. user data held in Oracle's U.S. cloud environment and the U.S. recommendation system operated under the venture's oversight. Cases that span that transition raise questions about which entity's system did what, and when, that an expert needs to handle precisely.
Yes, through the standard framework of FRE 901 and the self-authentication provisions of FRE 902(13) and 902(14), applied with an understanding of how TikTok capture formats differ in reliability. Screenshots are the weakest form, native captures and data exports are stronger, and platform records produced through legal process are strongest. I cover the full analysis in whether TikTok videos can be used as evidence in court and the courtroom mechanics in how TikTok evidence is used in court.
TikTok's published law enforcement guidelines describe a tiered system: subpoenas reach basic subscriber information, court orders under 18 U.S.C. 2703(d) reach log-type records, and search warrants are required for content. The guidelines also describe 90 day preservation on valid request, with one 90 day extension. In civil matters the Stored Communications Act generally bars content production from the platform, so content comes from the parties through data exports, devices, and discovery. Timing is usually decisive, since TikTok's published policies describe a 30 day deactivation window before account deletion becomes permanent.
Earlier than feels necessary. The highest-value work happens before evidence problems surface: scoping preservation while content is still live, structuring discovery around what TikTok can and cannot produce, and testing a reach theory before it anchors the case. My standard retainer is $5,000, and I am available nationally for federal and state matters. Early consultation can change discovery strategy by establishing what the platform record can actually support.
Most engagements follow the same arc, whether the matter is a two-party contract dispute or federal litigation. The pattern I follow:
In my expert witness work on TikTok matters, the engagements that go smoothest are the ones that start before the complaint is answered. Platform evidence decays on a schedule that does not care about the court’s calendar, and an expert who joins after the retention windows close can only analyze what survived. The difference between those two positions is often the difference between a reach opinion built on records and one built on inference.
Guides in this series, expanding as new analyses publish:
A TikTok expert witness analyzes platform mechanics, including the For You page algorithm, distribution, authentication, and account behavior, and presents that analysis in reports, depositions, and trial testimony so that factfinders can evaluate TikTok evidence accurately.
My standard retainer is $5,000. The full scope depends on the volume of content, the complexity of the reach analysis, the deadline, and whether the engagement may require a report, deposition, or trial support.
Direct platform expertise, current engagement with TikTok's mechanics, familiarity with its published policies and law enforcement guidelines, and testifying experience. My work spans 20+ cases, with platform coverage across Instagram, TikTok, Snapchat, YouTube, and X.
Basic subscriber information can be reached by subpoena under TikTok's law enforcement guidelines. Content generally requires a search warrant in criminal matters and is usually obtained from the parties, not the platform, in civil cases because of the Stored Communications Act.
Kate Talbot is a social media expert witness retained in 20+ cases, spanning intellectual property, employment, personal injury, defamation, and federal litigation. Her platform work covers Instagram, TikTok, Snapchat, YouTube, and X, including active engagements on TikTok platform mechanics.
To discuss a TikTok matter, review her social media expert witness services or request a consultation.