Computer Networking Expert Witnesses: 12

Michael D'Angelo has over 15 years of experience in Digital Forensics and has built, led and maintain sophisticated forensic analysis teams and labs. His experience extends from data collections, data recovery, advanced analysis and expert testimony. He has analyzed data from thousands of devices and has testified on dozens of cases on local, state and federal cases.

Areas of Expertise: Digital forensics, computer forensics, data recovery, mobile forensics, data collections, ediscovery, forensic imaging, forensic analysis, digital forensic analysis, computer forensic analysis.

Baw Chng is a highly experienced Networking, Communications, Computer, and Software expert. He is an inventor with 11 patents in communication and networking technology. He is also a published author, public speaker, and USPTO Registered Patent Agent.

Experience: 24+ years of professional experience in telecom and networking. Consulted for Tier-1 national communication service providers and their strategic technology vendors. Experienced in engineering R&D, standards development, and patent assessment. Baw Chng has published papers, given public talks/presentations, provided expert consulting, written expert reports, provided deposition & testimonies as an expertness.

Ideal Client - Litigators who work on cases that involve complex technical issues, patent and intellectual property related issues, business contract cases that involve sophisticated technology.

Areas of Expertise

Computer Networking Wireless Communication Cellular Technology Telecommunication Web Services

Cloud Computing Patent Infringement Call Record Analysis Internet-of-Things Computer Software

Technical Skills and Knowledge include:

• 3GPP and 3GPP2 families of cellular mobile broadband radio access and core network standards, small cells, femtocell, inter-technology handover and roaming
• IEEE 802.11 (Wi-Fi, mesh, infrastructure), 802.3 (Ethernet), 802.15 (WiMAX), 802.16 (WPAN) families of standards
• Network architecture, telecom system architecture
• Internet standards and protocols, TCP/IP, UDP, RTP, DHCP, DNS, ARP, GRE, etc.
• Internet-of-Things (IoT), M2M, LoRa, LoRaWAN, LTE Cat-M, NB-IoT
• Hotspot 2.0 / Passpoint (for Wi-Fi)
• IPsec, IKEv2, L2/L3 tunneling, NAT/NAPT (firewall)
• SAML, SAMLv2 federation; oAuth, oAuth 2.0 authentication; RADIUS, DIAMETER
• Network & device management, Broadband Forum TR-69 and IETF SNMP standards
• Software Defined Networking (SDN), Network Function Virtualization (NFV)
• Self-Organizing Network and Self-Optimizing Network (SON)
• Web Services, REST/JSON API design & implementation, HTTP
• Cloud computing, Amazon Web Services (AWS)
• Big Data, Avro, Parquet
• Plastic Optical Fiber (POF), Optical Networking
• Software architecture, Object-oriented design and programming, design patterns
• Go Lang, C, C++, Perl, LabVIEW, BASIC, Pascal, Unix shell scripting languages
• HTML, CSS, web design & development, web hosting, JavaScript, CGI Programming
• Operating systems (RTOS, various Unix/Linux variants, iOS, Android, etc.)
• Quality of Service (QoS), Fair Scheduling, Fair Queueing
• Interconnection networks and switching fabrics for parallel computers, network switches, and routers

Master's degree in Computer Science (MSCS), Bachelor's degrees in Electrical Engineering and Computer Engineering (BSEE, BSCoE), Washington University in St. Louis.

View BAWMAN LLC's Consulting Profile.

Brooks Hilliard, CMC, CCP is the only actively practicing expert witness in the world who is both a Certified Management Consultant and a Certified Computing Professional specializing in computer system selection and problem resolution. He has testified more than 30 times as a computer expert witness and has been engaged on more than 90 such matters for both plaintiffs and defendants. Mr. Hillard has done expert witness and consulting assignments in 25 states, and has qualified as an expert witness on computer software and hardware (including ERP, SCM and CRM systems) in both state and federal litigation. His expert witness engagements have included courtroom and deposition testimony in lawsuits, arbitrations, mediations and formal governmental hearings. 

Areas of Expertise:

• Allegations of ERP and CRM system failures and/or defective business software/systems
• Computer Forensics
• Intellectual property
• Valuation of computer hardware, software and services
• Regulatory, Procurement and Tax matters

Dr. Stephen Castell, Chartered Information Systems Practitioner and Member of the Expert Witness Institute, is Chairman of CASTELL Consulting. He is an internationally acknowledged Independent Computer Expert who has been involved in a wide range of computer litigation over many years. CASTELL Consulting, currently in its twenty-fifth year, provides independent professional consultancy and expert services in Computer Systems, Software, Project Management, Strategy, and Contract Disputes, to a wide variety of international clients and companies. 

As an Expert Witness in computer litigation, Dr. Castell has acted in over 100 major cases including the largest and longest computer software actions to have come to trial in the English High Court. He is the author of the best-selling Computer Bluff (1983), and of The APPEAL Report (1990) on the admissibility of computer evidence in court and the 'legal reliability' of information systems and technologies (with the CCTA).

Dr Castell, award-winning international Professional ICT Consultant and Expert has acted as expert witness in an unusual medical equipment procurement litigation of relevance to the current Covid-19 pandemic and its profound clinical and hospitalisation implications.  The court case, specific details of which cannot be given since the matter is subject to Confidentiality Hearing strictures, was over a dispute concerning due and diligent process undertaken by a major Hospital Management Group, the Defendant in the action, in issuing a Tender for complex diagnostic units, and the Group’s selection of the bid put in by a US corporation, a leader in its field.  That winning bid was challenged by a Claimant, another US corporation, a market competitor to the winning company.  The dispute hinged on whether or not the operational computer software of the winning bidder’s units was compliant with the Hospital Management Group’s strict Tender stipulation that the software had to be identical across all versions of the equipment to be supplied in meeting the Tender requirements.  

Dr Castell’s investigation and analysis of the operational software involved, and his opinion as to the extent that the software was compliant with the strict Tender condition, provided insight and assistance to the parties in reaching a satisfactory settlement.

Ray Horak provides litigation support as a consulting expert and testifying expert in cases involving the Telephone Consumer Protection Act (TCPA), product/service misrepresentation, contract disputes, and intellectual property (patent, copyright, and trademark/service mark infringement) disputes, as well as issues of taxes and fees allegedly owed to 911 districts and municipalities. Those cases have involved a broad range of technologies, including Automatic Telephone Dialing Systems (ATDSs), text messaging, cellular, DSL, E911, fax, PBX, prepaid cellular, push-to-talk (PTT), videoconferencing, VoIP, ringless voice mail and voice processing.

He also has performed numerous technical compliance reviews of the telephony systems that financial institutions and survey companies and their third party vendors employ in sales, collections, customer service and opinion polling. The objective of those engagements, several of which are ongoing, is to determine the specific nature and capacities (present, potential and theoretical) of the telephony systems (e.g., ATDS and PBX) and subsystems, the systems of record (i.e., databases), Customer Relationship Management (CRM) systems, Receivables Management (RM) systems, and any and all other peripheral systems, both premises- and cloud-based.

Ray is an Independent Consultant with a General Practice in Wireline and Wireless Telecommunications and Related Fields such as the Internet and Voice over IP. His 45 years’ experience includes management and executive positions with Southwestern Bell, CONTEL, and Executone. Ray authored the best-selling Communications Systems & Networks, (John Wiley & Sons), Telecommunications and Data Communications Handbook (Wiley-Interscience), and Webster’s New World Telecom Dictionary (Webster’s New World). Previously, Ray was Senior Contributing Editor for Newton’s Telecom Dictionary (12th through 21st Editions). He has written hundreds of technical white papers, case studies, articles, and columns for major print and electronic publications such as CommWeb, Computer Telephony, Datapro, Network World, The Prepaid Press, Teleconnect, and Telecom Reseller. Ray also has served as Technical Editor for several book-length works, including Deploying Secure 802.11 Wireless Networks with Microsoft Windows (Microsoft Press, 2003).

Matthew Albee, CFCE, EnCE, SCERS is a Computer Forensics expert with over 20 years of experience in his field. He currently serves as project manager and lead examiner on computer forensic and e-discovery cases for DataChasers, Inc.

Background Experience - Since 1996, Mr. Albee has been a Special Agent for the State of California Franchise Tax Board and the Board of Equalization where his responsibilities include equipping and maintaining the computer forensic laboratory, and conducting investigations that involved financial and computer crimes. Since 2012, he has served as a Course Evaluator /Subject Matter Expert for the Office of Anti-Terrorism Assistance (ATA), Diplomatic Security Service, United States Department of State.

Mr. Albee's experience with computer forensics runs the gamut from individual PCs to major corporations(references available), and includes every level and scope of examination. He has consulted to both public and private organizations and maintain a complete computer forensics laboratory.

Litigation Support - Matthew Albee has the distinction of having served as Special Master to Federal Court, as well as being the expert of record in numerous Superior and Municipal courts. He has extensive litigation experience as an expert witness and have testified for both civil and criminal cases. Mr. Albee has experience with employment law, family law, and criminal law cases.

Areas of Expertise:

Computer Forensics Cell Phone Forensics E-discovery Intellectual Property Disputes Unauthorized Computer Use

Restore Hidden, Deleted, Lost Files Restore Hidden, Deleted, Lost Files Images File Dates: Created, Modified, Deleted Internet History Tracking Email Recovery

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C. Matthew Curtin, CISSP  Founder and CEO of Interhack is a Certified Information Systems Security Professional. An Expert in Computers and Information Technology, Mr. Curtin and his team at Interhack help attorneys and executives use data and computer technology in high-stakes situations. 

Mr. Curtin's work has been at the cutting edge of the intersection of law and technology. The U.S. Court of Appeals for the First Circuit relied on Interhack's forensic computing practice and Mr. Curtin's expert opinion when it established standards for application of Federal wiretap statutes to Web technology, In re Pharmatrak Privacy Litigation (see link above). 

Academic references to their work include the Stanford Law Review and university courses throughout the world. Mr. Curtin maintains a regular academic appointment as a Senior Lecturer at The Ohio State University's Department of Computer Science and Engineering. He currently chairs the Recruitment subcommittee of the Business Advisory Network that advises the Ohio Department of Education's standards for technology education in secondary and postsecondary schools throughout the state. 

C. Matthew Curtin's services are available for plaintiffs, defendants, and for the courts directly on technical matters. 

Areas of Forensic Expertise:

• Electronic Discovery
• Preservation and Forensic Analysis of Data
• Complex Analysis of Non-Standard Data Sets
• Investigations
• Data Breaches

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Philip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE, is an expert witness, consultant & trainer in the design, construction, procurement, implementation, commissioning & operations of Information Technology, Telecommunications & Critical Data Center Facilities. 

Mr. Isaak provides clear analysis for complex disputes, incorporating industry standards, best-practices and over 20 years of consulting & training expertise working with clients located in 28 countries and territories across 6 continents. 

In recognition of Mr. Isaak’s professional standing, the Institute of Electrical & Electronic Engineers (IEEE), the world’s largest professional association for advancement of technology, certified him to the grade of Senior Member, a level only 9% of IEEE’s over 400,000 global members hold. Mr. Isaak is also an author of several industry standards published by TIA & ANSI/BICSI, whitepapers published by The Green Grid, and the Data Center Handbook published by John Wiley & Sons.

Expert Witness Services

IP, Trade Secrets, Contracts Analysis Design, Construction, Implementation Claims, Damages Defects, Delays, Failure & Quality Control Analysis Failed System Analysis Unfulfilled SLA Analysis

Technical Investigations Claims Preparation & Analysis Expert Reports Settlement Opinions & Strategies Deposition & Trial Testimony

Areas of Expertise:

Providing Cloud Computing Services Colocation Services Construction Data Centers Electrical Engineering Fiber Optic Cabling

Forensic Engineering IT Systems Capacity Planning & Forecasting Life Safety Systems Network Systems, Services & Infrastructure Operating Procedures Telecommunications

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Jacob Sharony, PhD, MBA, has over 25 years of experience in Mobile and Wireless Technologies. He is currently an adjunct professor at Columbia University, teaching wireless technologies and applications. He also served as a faculty member of the electrical and computer engineering department and director of the Center of Excellence in Wireless and Information Technology at Stony Brook University. Dr. Sharony held engineering and management positions in diverse technology disciplines at Time Warner Cable, Motorola, BAE Systems, NEC Research Institute, and IBM Research. He has over 50 US patents (pending and issued) and has served on several government expert panels.

Litigation Support - Dr. Sharony provides Patent and Class Action litigation support and expert consulting in mobile and wireless technologies. This includes patent infringement and invalidity analysis, FRAND analysis, writing expert reports, and deposition, and testimony in court. His deep knowledge of target markets, including telecom, healthcare, logistics, transportation, government, hospitality, mobile commerce and supply chain management, combined with extensive expertise in wireless and mobile technologies ensure innovative and successful solutions.

Areas of Expertise:

WiFi 4G LTE and WiMAX 5G Access / Backhaul Millimeter Waves (mmWave) 60 GHz Bluetooth / BLE ZigBee MIMO VoIP

RTLS RFID IoT M2M Wireless Sensing Technologies Antenna Issues Small Cell Issues Security Issues

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Dr. George Edwards, Ph.D. is an expert in Computer Software, Internet Applications, Web Technologies, Mobile Phone/Tablet Applications, Digital Video and Multimedia, Medical and Embedded Software, and Aerospace/Defense Systems. He has more than a decade of experience as a scientist, engineer, and technical consultant to academic research labs, government agencies, technology companies, and attorneys.

Dr. Ewards has authored dozens of articles and papers related to software engineering for scientific journals and industry magazines. He is listed as a co-inventor on two pending patent applications for novel software technology and has served as a software expert witness in patent litigation matters.

• Intellectual property and patent infringement
• Software design/source code audit and review
• Non-performance claims
• Expert witness and depositions

Expert Technologies :

• Programming languages & platforms: Java, C/C++, C#, Perl, Python, PHP, .NET, WinForms, WPF, Visual Studio, Eclipse, Java EE, CORBA
• Internet and web: JavaScript, AJAX, Node.js, Ruby, HTML, XML, CSS, ASP.NET
• Mobile devices & applications: Android, iOS, iPhone, Windows Mobile, Windows Phone, BlackBerry, Palm OS, Java ME
• Multimedia: MPEG, SVG, DVR, Silverlight, Flash
• Operating systems & servers: UNIX, Linux, Windows, Mac OS
• Networking: IMAP, POP, SMTP, DNS, TCP/IP, HTTP
• Databases: RDBMS, SQL, MS SQL Server, MS Access, Oracle, MySQL
• Project management & development methods: Kanban, Lean software development, agile, object-oriented (OO), aspect-oriented programming (AOP), component-based development, COTS integration, requirements engineering, spiral model, UML

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Dr. Tal Lavian holds a Ph.D. from the University of California, Berkeley, in Computer Science, specializing in Networking and Communications. He is an expert in network communications, telecommunications, Internet Protocols (TCP/IP), LAN/WAN, Streaming media, VoIP, mobile wireless, and Internet/Web technologies. He has over 30 years of experience, has invented over 120 patents, and has co-authored over 25 scientific publications. For 20 years, Dr. Lavian has researched, studied, and lectured at UC Berkeley Engineering. He has served as an industry fellow and lecturer with UC Berkeley’s Industrial Engineering IEOR, Berkeley Engineering’s SCET, UC Berkeley’s start-up accelerator, and SkyDeck, as principal investigator for CRadar.Ai and CTO for Aybell.

Areas of Expertise:

Network Communications - Telecommunications - Internet Protocols (TCP/IP) - VoIP - Streaming Media - Mobile Wireless:

• Communication Networks: Internet protocols; TCP/IP suite, TCP, UDP, IP, Ethernet, 802.3, network protocols, network software applications, data link, network, and transport layers (L2, L3, L4), packet switching, data center network architecture.
• Mobile Wireless: Wi-Fi, 802.11, Bluetooth, MAC, PHY, Wireless LAN (WLAN). Cellular systems, SMS, instant messaging (chat), mobile devices, and smartphones.
• Internet/Cloud: Internet Technologies, Web applications, HTTP, e-mail, SMTP, POP, IMAP, Java, C/C++, file transfer FTP, client-server, cloud computing, distributed computing.
• Routing/Switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, network infrastructure, and network communication architectures.
• VoIP/Streaming Media: PSTN, voice, data, circuit switching, IP telephony, VoIP, SIP, RTP, video/audio conferencing, streaming media.

Dr. Lavian brings both hands-on and academic experience to his work in Network communications, Internet Protocols, design, and architecture. 

Litigation Support:

Dr. Lavian offers expert witness services and provides courtroom presence, clear testimony, and an ability to effectively distill complex concepts into understandable basics and commonsense.

• He has extensive experience rendering reports and testifying in Federal, IPR, and ITC cases in over 140 patent-related cases.
• Past cases have involved leading companies such as Google, Microsoft, Amazon, LinkedIn, Avaya, T-Mobile, AT&T, Ericsson, Sprint, Cisco Systems, Juniper Networks, Polycom, Motorola, LG, WhatsApp, Instagram, ZTE, Huawei, Facebook, and Apple.

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Tony Mason has 34 years of experience helping attorneys solve complex Computer Operating System issues. His experience includes software development, teaching and writing about technology and working with dozens of companies in a consulting role to solve their problems.

Mr.  Mason has worked with multiple operating systems including Microsoft Windows, UNIX, and Linux. He is the author of two books, including, Windows NT Device Driver Development, several peer-reviewed papers, and numerous non-peer-reviewed publications. 

Mr. Mason is the primary inventor on 12 patents:

US/9830329 Methods and Systems for Data Storage US/9600486 File System Directory Attribute Correction US/9535759 Work Queue Thread Balancing US/8990228 Arbitrary Data Transformation US/8903874 File System Directory Attribute Correction US/8539228 Managing Access to a Resource

US/8521752 Arbitrary Data Transformations US/8024433 Managing Application Resources US/7809897 Managing Lock Rankings US/7512748 Managing Lock Rankings US/7949693 Log-Structured Host Data Storage US 15/791,486 Methods and Systems for Data Storage

Litigation Support - Mr. Mason has gained extensive experience clearly explaining technical subjects so they are easily understood by non-experts. His expert witness services primarily focus on assisting in the preparation of materials necessary for computer operating systems patent litigation. He provides research, prepares reports, and explains technical terms clearly and lucidly. He is available for depositions and trial testimony as needed.

Areas of Expertise:

Distributed Computing Networking Data Storage Forensics Recovery File Meta-data Encryption Compression Computer Security Encryption Anti-virus Authentication Authorization Computer Networks

Blockchain Distributed Systems Network Protocols RDMA Code Analysis Code Analysis Comparison Reverse Engineering Code Failure Analysis Debugging Artificial Intelligence (AI) Machine Learning, Adversarial Learning Reinforcement Learning

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