Guidance Software Celebrates 50,000 EnCase® Students • Achievement of milestone underscores EnCase® software as the product of choice for digital investigations professionals • Schaumburg Police Department honored as milestone participant in world-renowned EnCase training programs PASADENA, Calif. (September 20, 2012) - Guidance Software Inc. (NASDAQ:GUID), the World Leader in Digital Investigations, today announced that 50,000 attendees had completed EnCase training courses in its classroom, online training, or certified partner training programs, learning professional investigation techniques in such areas as computer forensics, cybersecurity and advanced threats and electronic discovery. Detective Christopher Nowicki of the Investigations Division of the Schaumburg, IL, Police Department was recognized by Al Hobbs, vice president of Professional Development and Training Operations at Guidance Software, with a plaque of appreciation for his participation in this notable milestone. ³In the first year of our training programs, we trained 32 students. This year, we expect to train over 6,000, and we are very proud to now celebrate our 50,000th student² said Hobbs. ³I want to thank Detective Nowicki, and all of our students, for their support and trust in our products and training over the years. I look forward to training the next 50,000!² Guidance Software Training provides state-of-the-art training courses for critical, real-world digital investigations, including forensic investigations, law enforcement and fraud investigations, e-discovery and cybersecurity incident response. The range of courses is designed not only for professionals just beginning their careers in digital forensics, but also for investigative experts requiring specialized skills. ³We at the Schaumburg Police Department strive to be at the forefront of law enforcement, and Guidance Software¹s EnCase products and training programs are part of that effort,² said Commander Dawn McDermott. ³From cutting edge training courses to flexible training options, such as the Training Annual Passport, we¹ve found Guidance Software to be at the top of their game and their products, training programs and certifications, such as the EnCE® (EnCase Certified Examiner) certification becoming the de-facto industry standard.² ³I have found Guidance Software¹s EnCase and training programs to be in-depth, comprehensive and reflective of realworld issues facing law enforcement and computer forensic professionals today,² said Detective Nowicki. ³We have successfully investigated, cleared and prosecuted many suspects using their products and methodology learned from their training courses.² ³Fifty thousand students trained underscores the dominance of EnCase software; we believe no competitor is close to that achievement² said Victor Limongelli, president and chief executive officer, Guidance Software. ³We are humbled by the trust tens of thousands of EnCase users have placed in our training and in EnCase software². For more information on Guidance Software Training programs, please visit http://www.guidancesoftware.com/training.htm. Guidance Software is offering a limited edition 50,000th student milestone t-shirt to all students that register for any training course between now and December 31, 2012. Please visit the Guidance Software website for more details on this offer. About Guidance Software, Inc. Guidance Software is recognized worldwide as the industry leader in digital investigative solutions. Its EnCase® platform, with more than 40,000 licenses distributed worldwide, provides the foundation for government, corporate and law enforcement organizations to conduct thorough, network-enabled, and courtvalidated computer investigations of any kind, such as responding to e-discovery requests, conducting internal investigations, responding to regulatory inquiries or performing data and compliance auditing - all while maintaining the integrity of the data. The EnCase Enterprise platform is used by numerous Federal Civilian and Defense agencies, more than 60 of the Fortune 100, and thousands attend Guidance Software's renowned training programs annually. For more information about Guidance Software, visit www.guidancesoftware.com. EnCase®, EnScript®, FastBloc®, EnCE®, EnCEP®, CaseCentral®, CaseCentral eDiscovery Cloud® Guidance Software and Tableau are registered trademarks or trademarks owned by Guidance Software in the United States and other jurisdictions and may not be used without prior written permission. All other trademarks and copyrights referenced in this press release are the property of their respective owners. # # #