Jeff Shackelford is an Applications Engineer and Digital Forensics Specialist for PassMark Software, makers of OSForensics. As a former Digital Forensics Lab Director, Supervisory Special Agent, and Certified Law Enforcement Instructor, Jeff has over 16 years of law enforcement and computer-crime investigative experience and has been an active member, practitioner and speaker in the digital forensics and cyber-crime communities for the past 14 years. He has testified before numerous courts of law over the years as a qualified Expert Witness in computer forensics, mobile forensics, and internet investigations. Now with PassMark Software, Jeff utilizes his extensive training background and years of 'real-world' experience to help design, develop, and implement new features for OSForensics.