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Lars Daniel

Digital forensics expert & expert witness · The Forbes digital forensics columnist

Expert Witness Asked ChatGPT To Show 0% Fault—The Wrong Way For Experts To Use AI AI Evidence

Expert Witness Asked ChatGPT To Show 0% Fault—The Wrong Way For Experts To Use AI

An expert witness asked ChatGPT to show the company was “0% at fault” in a deadly Houston explosion case. The prompts came out at trial and show experts how not to use AI.

By Lars Daniel · August 26, 2026 · 6 min read

The Trucking Defense Guide to Cell Phone Forensics, by Lars Daniel — book cover
The book

The Trucking Defense Guide to Cell Phone Forensics

From rapid response to the courtroom

Written for the people who defend trucking cases. What cell phone records actually show, what they miss, and how to keep the wrong extraction from sinking your case. For defense attorneys, trucking companies and claims professionals.

Get the book on Amazon Paperback & Kindle

Deepfakes

AI Workflow Guide for Attorneys

Important Disclaimer: I am a digital forensics expert, not an attorney. This guide describes technical workflows for using AI tools (including Perplexity) in litigation support. It is not legal advice, ethics advice, or billing guidance. Attorneys…

Feb 9, 2026 · 5 min read

Cell Phone Forensics

Apple iPhone Preservation Guide

This guide outlines best practices for preserving iPhone (iOS) devices after a collision to protect forensic data. Due to frequent software updates, steps may vary. Consult a cell phone forensic expert for up-to-date guidance. If any step cannot be…

Nov 10, 2025 · 2 min read

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Digital forensics, explained before you need it

AI evidence, deepfakes and cell phone forensics from an expert witness who works these cases. No hype, no fear-mongering. Free.

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