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Global Leader

Data - Data Experts 2021

Professional Biography

WWL Ranking: Recommended

WWL says

David Kalat is widely respected for his testifying expertise and strong background in digital forensic work across a spectrum of industries.


Mr Kalat is an information scientist and a testifying expert in electronic evidence, digital forensics, data analytics, and information security. He is a licensed private detective, and the author of numerous publications on the history of information technologies. 

He leads the Chicago digital forensics lab for BRG’s Global Investigations + Strategic Intelligence practice group. Prior to joining BRG, Mr. Kalat was with Duff & Phelps’ Disputes and Investigations practice, where he managed an international team of forensic examiners and eDiscovery support specialists. Mr. Kalat has over 20 years of experience in digital video, and has applied this knowledge to the forensic examination of video evidence.

Mr Kalat has been qualified as an expert in electronic evidence and digital forensics in civil and criminal matters, in state and U.S. Federal courts. He has testified in bench and jury trials, in class certification hearings, arbitrations, preliminary injunction hearings, and spoliation disputes. He has frequently testified in putative class actions involving TCPA claims and related data privacy laws. He has drafted forensic protocols, and served as an eDiscovery neutral. His casework has included investigations of alleged spoliation of electronic evidence and theft of trade secrets; analysis of blockchain data and surveillance video recordings; examination of complex telecommunications and data management platforms including biometric authentication systems; and structured data analytics.

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