I have 20 years of experience, and specialize in the field of computer forensics with specific knowledge in the areas of computer and cell phone forensics, e-discovery and computer security. I have published on such topics as computer forensics, computer security and data recovery. I have testified 20 times on topics such as computer, cell, phone, email, network, and internet analysis, evidence spoliation and evaluating electronic discovery plans and intellectual property, trademark and patent infringement.