Sec Form 4 Filing - van der Colff Rasmus @ Guidance Software, Inc. - 2015-02-02

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person van der Colff Rasmus 2. Issuer Name and Ticker or Trading Symbol Guidance Software, Inc. [ GUID] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CAO/ VP of Finance (Last) (First) (Middle) C/O GUIDANCE SOFTWARE, INC.,, 1055 EAST COLORADO BLVD 3. Date of Earliest Transaction (MM/DD/YY) 02/02/2015 (Street) PASADENA, CA91106-2375 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock ( 1 ) 02/02/2015 S 1,800 D $ 6.38 62,062 D Common Stock ( 2 ) 02/03/2015 S 1,800 D $ 6.38 60,262 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other van der Colff Rasmus C/O GUIDANCE SOFTWARE, INC., 1055 EAST COLORADO BLVD PASADENA, CA91106-2375 CAO/ VP of Finance Signatures /s/ Mark E. Harrington, Attorney in Fact 02/04/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Pursuant to a Section 10b5-1 Plan established by Mr. van der Colff, on September 12, 2014, a total of 1,800 shares of Common Stock were sold in multiple transactions at a prices ranging from $6.27 to $6.45 per share, with an average price of $6.38 per share as reported in Column 4, for the purpose of paying income taxes associated with the vesting of certain restricted stock awards. The subject Common Stock was acquired by way of restricted stock awards that fully vested prior to February 10, 2014. The Section 10b5-1 Plan has not been modified since adopted. The reporting person undertakes to provide Guidance Software, Inc., any security holder of Guidance Software, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range indicated in this footnote. ( 2 )Pursuant to a Section 10b5-1 Plan established by Mr. van der Colff, on September 12, 2014, a total of 1,800 shares of Common Stock were sold in multiple transactions at a prices ranging from $6.25 to $6.45 per share, with an average price of $6.38 per share as reported in Column 4, for the purpose of paying income taxes associated with the vesting of certain restricted stock awards. The subject Common Stock was acquired by way of restricted stock awards that had fully vested prior to February 10, 2014. The Section 10b5-1 Plan has not been modified since adopted. The reporting person undertakes to provide Guidance Software, Inc., any security holder of Guidance Software, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range indicated in this footnote.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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