Facebook Expert Witness

Kate Talbot provides expert witness services for litigation involving Facebook — including reach and advertising analysis, content authentication, defamation and reputational harm, employment disputes, and Meta platform mechanics. With nearly three billion monthly active users, Facebook content appears in a wide range of civil and criminal litigation, and expert testimony is frequently required to interpret platform data accurately.


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At a glance

Attorneys handling evidence disputes retain a social media expert to authenticate and explain platform records — here's how that works →

What she testifies on

Case types

Why attorneys retain her

Kate Talbot has extensive experience with Facebook as a platform for brand building, advertising, and community management — including running Facebook presences for Virgin America and Kiva and teaching Facebook strategy at the C-suite level for Sony Latin America and the Digital Marketing Institute. She understands the distinction between organic reach and paid distribution, how Facebook Groups differ from Pages in terms of reach and privacy, and how Meta's advertising infrastructure affects content visibility.

Her practitioner background combined with 20+ cases across 10+ law firms means she can explain Facebook's platform mechanics and data structure in plain language — not academic abstractions.

For related context on creator disputes, see Kate's work as an influencer dispute expert witness.

Read more about Kate's broader practice as a social media evidence expert.

Frequently asked questions

What is a Facebook expert witness?

A Facebook expert witness provides courts with specialized knowledge about how Facebook works — including algorithmic distribution, advertising mechanics, engagement metrics, content authentication, and platform-native data analysis. Expert testimony is used in defamation, employment, IP, and personal injury matters.

How does Facebook's algorithm affect reach evidence?

Facebook's algorithm determines what content users see based on engagement signals, account relationships, and content type. Organic reach — the percentage of followers who actually see a post — has declined significantly over the past decade. Expert analysis is required to distinguish organic reach from paid amplification and to contextualize what any given reach figure actually means.

Can Facebook posts be used as evidence?

Yes, but authentication requires more than a screenshot. Platform-native data obtained through Meta's legal process, URL-verified captures with metadata, and expert testimony are required for reliable authentication. Facebook's editing, deletion, and privacy setting features create additional complexity.

When should a Facebook expert witness be retained?

As early as possible. Facebook content can be deleted and privacy settings changed after litigation begins. Early retention allows for proper preservation requests and ensures the most complete evidentiary record.

About Kate Talbot

Kate Talbot — Social Media Expert Witness · Kate Talbot Marketing. 20+ cases at 10+ law firms including Fish & Richardson, Knobbe Martens, and Seyfarth Shaw. Prior experience: social media lead at Virgin America and Kiva, Senior Forbes Contributor, CNN · NPR · BBC.

Retainer

Standard retainer: $5,000. Available nationwide — federal and state. See also the main Expert Witness page.

Social media expert witness

Facing a dispute over Facebook evidence? Kate Talbot provides expert analysis and testimony on how messages, posts, and metadata function on Facebook and other platforms — retained in IP, employment, personal injury, criminal defense, and insurance matters.

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Response within one business day

September 23, 2026