Guidance Software to Announce 2012 Fourth Quarter and Year-End Financial Results

  Guidance Software to Announce 2012 Fourth Quarter and Year-End Financial
  Results

Business Wire

PASADENA, Calif. -- January 23, 2013

Guidance Software, Inc. (NASDAQ: GUID) today announced the Company will issue
financial results for the fourth quarter and year ended December 31, 2012
after market close on Thursday, February 7, 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, February 7, 2013 through 11:59 pm ET,
Thursday, February 14, 2013, by calling (404) 537-3406 or toll-free at (855)
859-2056, passcode 83012081.

About Guidance Software:

Guidance Softwareis 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
court-validated 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 65 of the
Fortune 100, and thousands attend Guidance Software's renowned training
programs annually. For more information aboutGuidance Software,
visitwww.guidancesoftware.com.

EnCase®, EnScript®, FastBloc®, EnCE®, EnCEP®, CEIC®
CaseCentral®,CaseCentraleDiscovery Cloud®, Guidance Software™ and Tableau™
are registered trademarks or trademarks owned byGuidance Softwareinthe
United Statesand 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.

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Contact:

INVESTOR CONTACT:
Guidance Software, Inc.
Rasmus van der Colff
626-768-4607
investorrelations@guidancesoftware.com
or
MEDIA CONTACT:
Guidance Software, Inc.
Alex Andrianopoulos
626-229-9191
newsroom@guidancesoftware.com