Guidance Software to Announce 2013 First Quarter Results

  Guidance Software to Announce 2013 First Quarter Results

Business Wire

PASADENA, Calif. -- April 18, 2013

Guidance Software, Inc. (NASDAQ: GUID) today announced the Company will issue
financial results for the first quarter ended March 31, 2013 after market
close on Thursday, May 2, 2013. A conference call is scheduled for2:00 pm PT
/ 5:00 pm ET.

Guidance Software's President and Chief Executive Officer Victor Limongelli
and Chief Financial Officer Barry Plaga will discuss the financial results
followed by a question and answer session with analysts and investors.

To participate in the conference call, please dial in five minutes prior to
the start time at:

                  
North America:         (877) 303-9850
International:         (408) 427-3732
                       

You may also listen to the call live or hear a re-broadcast later by visiting
http://investors.guidancesoftware.com/events.cfm. A replay of this call will
be available from 8:00 pm ET Thursday, May 2, 2013 through 11:59 pm ET,
Thursday, May 9, 2013, by calling (404) 537-3406 or toll-free at (855)
859-2056, passcode 30942149.

About Guidance Software:

Guidance Software is recognized worldwide as the industry leader in digital
investigative solutions. Its EnCase® Enterprise platform is used by numerous
government agencies, more than 65 percent of the Fortune 100, and more than 40
percent of the Fortune 500, to conduct digital investigations of servers,
laptops, desktops, and mobile devices. Built on the EnCase Enterprise platform
are market-leading electronic discovery and cyber security solutions, EnCase®
eDiscovery and EnCase® Cybersecurity, which enable organizations to respond to
litigation discovery requests, proactively perform data discovery for
compliance purposes, and conduct speedy and thorough security incident
response. For more information about Guidance Software, visit
www.guidancesoftware.com.

EnCase®, EnScript®, FastBloc®, EnCE®, EnCEP®, 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.

GUID-F

Contact:

Investor Contact:
Guidance Software, Inc.
Rasmus van der Colff, 626-768-4607
investorrelations@guidancesoftware.com