Eric Grabski is an expert witness specializing in historical cell site analysis, call detail record analysis, and mobile device forensics. Eric is currently a Digital Forensic Examiner with Envista Forensics where he provides consultation to attorneys regarding criminal and civil litigation. Eric began his career in law enforcement as a Special Agent with the South Carolina Law Enforcement Division (SLED). During his career at SLED Eric was assigned to the State Surveillance and Intelligence Unit where his primary role was conducting historical and live cell site location analysis to locate violent fugitives, missing and endangered persons, and missing children. While at SLED Eric was deputized as a Special Deputy U.S. Marshal on the South Carolina Electronic Crimes Task Force where his unit worked alongside the United States Secret Service assisting with fugitive apprehension and electronic surveillance. Eric has experience utilizing pen register trap & traces, GPS location analysis, mobile device forensics, and social media records analysis to assist local and federal agencies on major cases. Eric is a Certified Telecommunications Network Specialist (CTNS), Certified Wireless Analyst (CWA), Cellebrite Certified Operator (CCO), and Cellebrite Certified Physical Analyzer (CCPA). Eric has qualified and testified as an expert witness in State and Federal courts in the areas of historical cell site analysis, call detail record analysis, and mobile device forensics. He has over 300 hours of training in cellular location analysis, wireless communications theory, and mobile device forensics
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