PASADENA, Calif.--(BUSINESS WIRE)--Guidance Software, Inc. (NASDAQ: GUID) today announced the company’s plans to participate in the 18th Annual Oppenheimer Technology, Internet & Communications Conference. Event:           18th Annual Oppenheimer Technology, Internet & Communications Conference   Date: Tuesday, August, 11, 2015   Time: 12:45 PM PT / 3:45 PM ET   Location: Four Seasons Hotel, Boston, MA   Company Participants: Patrick Dennis, President and CEO Barry Plaga, COO and CFO Ra