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54 St. Mary's L.J. 1 (2023)

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                         ARTICLE




   MISTAKES WITH THE MISTAKE DEFENSE

              IN   TEXAS CRIMINAL LAW


                     CHARLES P. BUBANY*



 I.   The Unreasonable Reasonable Mistake of Fact Defense .............. 2
 II.  Finding an Intent to  N egate .............................................................. 10
 III. A Detour by Way of Penal Code Section 6.04(b) (1) .........................18
 IV.  M istake of Fact or M istake of Law?................................................  23




 When   the Texas legislature enacted a comprehensive penal code in 1974,
 it provided specifically for the defenses of mistake of fact and mistake of
 law. Unfortunately, the adoption of those provisions reflects a missed
 opportunity to clarify the law concerning mistake as a defense to criminal
 liability in Texas criminal law. The predicted analytical problems spawned
by that missed opportunity have come to pass. This article will review the
problems  the Texas courts have had to face in interpreting the code
provisions and will offer suggestions concerning the proper approach to
their application.

  The  first problem is the requirement that the mistake of fact defense is
available only if it is determined to be reasonable. This requirement is


* Adjunct Professor of Law, Texas Tech University School of Law; J.D. Washington University (St.
Louis: B.A., St. Ambrose University).


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