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DEEPFAKES & SYNTHETICMEDIA · A GUIDE FOR UK LAWYERS Deepfakes and Synthetic Media Fake Video, Cloned Voices and the Liar's Dividend: Authenticating the Real COMPUTER FORENSICS LAB

§ ABOUT THE AUTHOR PREPARED BY COMPUTER FORENSICS LAB E-DISCOVERY TEAM AUDIO & VIDEO AUTHENTICATION CPR PART 35 EXPERT REPORT S FULL CHAIN-OF-CUSTODY DOCUMENTATION

§ CONTENTS In this guide 01 Executive summary 02 The problem in plain English: seeing is no longer believing 03 How synthetic media is made and misused 04 Detecting generation and manipulation in the media 05 Provenance and authenticating the genuine 06 The liar's dividend and honest limits 07 Deployment: fabrication, denial and the burden of proof 08 Source architecture: where else the evidence lives 09 Worked examples 10 Common mistakes and technical limitations 11 Questions to ask · Suggested wording 12 Checklist and red flags · When to involve a digital forensic expert 13 Frequently asked questions 14 Glossary · References · Disclaimer · How a specialist laboratory can assist

§ 01 · ORIENTATION Executive summary The headline point: AI can now fake video, voice and images convincingly, creating two dangers, the fake media forensics and provenance, with conclusions stated at honest confidence in either direction.

§ 02 · FIRST PRINCIPLES The problem in plain English: seeing is no longer believing

§ 03 · HOW IT IS MADE AND M IS USED How synthetic media is made and misused