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Patrick Zeller is Vice President and Deputy General Counsel for Guidance Software Inc. where he performs in-house legal functions, supervises the legal and regulatory team, and works with corporate law departments of other companies seeking to implement defensible in-house eDiscovery processes in the US, Canada, UK, and Europe. He writes and speaks regularly on topics related to eDiscovery and digital evidence and the intersection between law and technology. Prior to joining Guidance Software, Patrick practiced litigation at Seyfarth Shaw LLP where he co-chaired the firm's Electronic Discovery Practice Group. He practiced commercial litigation, with a strong emphasis on technology issues and electronic discovery. Patrick served as an Assistant Attorney General and Director of the Computer Crimes Institute for the State of Illinois where he prosecuted a wide variety of technology related crimes and supervised a multi-jurisdictional computer forensic laboratory. During this time, he was named a Computer Crimes Fellow by the United States Department of Justice and served as a trial attorney for the Department’s Computer Crime and Intellectual Property Section, where advised prosecutors and law enforcement agents on how to conduct Internet and high-tech criminal investigations. Patrick has lectured extensively on Internet and high-tech crime at numerous law enforcement training venues nationwide, including the FBI Academy. He is widely regarded as one of the leading minds in technology and the law; his specialties include eDiscovery, internal investigations, computer intrusion, economic espionage, online fraud, intellectual property and trade secret issues. Patrick is an Adjunct Professor and Distinguished Lecturer at The John Marshall Law School’s Information Technology and Privacy Law LLM program, where he teaches the “eDiscovery, Computer Evidence and Computer Forensics” class. He also holds several certifications in computer forensics, is a member of the Sedona Conference and presides over the Midwest Chapter of HTCIA High Technology Crimes Investigatiors Association in 2008.