CHAPTER 8. GENERAL DEFENSES TO CRIMINAL RESPONSIBILITY
§ 8.01. Insanity
(a) It is an affirmative defense to prosecution that, at the
time of the conduct charged, the actor, as a result of severe
mental disease or defect, did not know that his conduct was wrong.
(b) The term "mental disease or defect" does not include an
abnormality manifested only by repeated criminal or otherwise
antisocial conduct.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1983, 68th Leg., p. 2640, ch. 454, § 1, eff. Aug.
29, 1983; Acts 1993, 73rd Leg., ch. 900, § 1.01, eff. Sept. 1,
1994.
§ 8.02. Mistake of Fact
(a) It is a defense to prosecution that the actor through
mistake formed a reasonable belief about a matter of fact if his
mistaken belief negated the kind of culpability required for
commission of the offense.
(b) Although an actor's mistake of fact may constitute a
defense to the offense charged, he may nevertheless be convicted of
any lesser included offense of which he would be guilty if the fact
were as he believed.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1993, 73rd Leg., ch. 900, § 1.01, eff. Sept. 1,
1994.
§ 8.03. Mistake of Law
(a) It is no defense to prosecution that the actor was
ignorant of the provisions of any law after the law has taken
effect.
(b) It is an affirmative defense to prosecution that the actor
reasonably believed the conduct charged did not constitute a crime
and that he acted in reasonable reliance upon:
(1) an official statement of the law contained in a written
order or grant of permission by an administrative agency charged by
law with responsibility for interpreting the law in question; or
(2) a written interpretation of the law contained in an
opinion of a court of record or made by a public official charged
by law with responsibility for interpreting the law in question.
(c) Although an actor's mistake of law may constitute a
defense to the offense charged, he may nevertheless be convicted of
a lesser included offense of which he would be guilty if the law
were as he believed.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1993, 73rd Leg., ch. 900, § 1.01, eff. Sept. 1,
1994.
§ 8.04. Intoxication
(a) Voluntary intoxication does not constitute a defense to
the commission of crime.
(b) Evidence of temporary insanity caused by intoxication may
be introduced by the actor in mitigation of the penalty attached to
the offense for which he is being tried.
(c) When temporary insanity is relied upon as a defense and
the evidence tends to show that such insanity was caused by
intoxication, the court shall charge the jury in accordance with
the provisions of this section.
(d) For purposes of this section "intoxication" means
disturbance of mental or physical capacity resulting from the
introduction of any substance into the body.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1993, 73rd Leg., ch. 900, § 1.01, eff. Sept. 1,
1994.
§ 8.05. Duress
(a) It is an affirmative defense to prosecution that the actor
engaged in the proscribed conduct because he was compelled to do so
by threat of imminent death or serious bodily injury to himself or
another.
(b) In a prosecution for an offense that does not constitute
a felony, it is an affirmative defense to prosecution that the
actor engaged in the proscribed conduct because he was compelled to
do so by force or threat of force.
(c) Compulsion within the meaning of this section exists only
if the force or threat of force would render a person of reasonable
firmness incapable of resisting the pressure.
(d) The defense provided by this section is unavailable if the
actor intentionally, knowingly, or recklessly placed himself in a
situation in which it was probable that he would be subjected to
compulsion.
(e) It is no defense that a person acted at the command or
persuasion of his spouse, unless he acted under compulsion that
would establish a defense under this section.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1993, 73rd Leg., ch. 900, § 1.01, eff. Sept. 1,
1994.
§ 8.06. Entrapment
(a) It is a defense to prosecution that the actor engaged in
the conduct charged because he was induced to do so by a law
enforcement agent using persuasion or other means likely to cause
persons to commit the offense. Conduct merely affording a person
an opportunity to commit an offense does not constitute entrapment.
(b) In this section "law enforcement agent" includes personnel
of the state and local law enforcement agencies as well as of the
United States and any person acting in accordance with instructions
from such agents.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1993, 73rd Leg., ch. 900, § 1.01, eff. Sept. 1,
1994.
§ 8.07. Age Affecting Criminal Responsibility
(a) A person may not be prosecuted for or convicted of any
offense that the person committed when younger than 15 years of age
except:
(1) perjury and aggravated perjury when it appears by proof
that the person had sufficient discretion to understand the nature
and obligation of an oath;
(2) a violation of a penal statute cognizable under Chapter
729, Transportation Code, except for:
(A) an offense under Section 550.021, Transportation Code;
(B) an offense punishable as a Class B misdemeanor under
Section 550.022, Transportation Code; or
(C) an offense punishable as a Class B misdemeanor under
Section 550.024, Transportation Code;
(3) a violation of a motor vehicle traffic ordinance of an
incorporated city or town in this state;
(4) a misdemeanor punishable by fine only other than public
intoxication;
(5) a violation of a penal ordinance of a political
subdivision;
(6) a violation of a penal statute that is, or is a lesser
included offense of, a capital felony, an aggravated controlled
substance felony, or a felony of the first degree for which the
person is transferred to the court under Section 54.02, Family
Code, for prosecution if the person committed the offense when 14
years of age or older; or
(7) a capital felony or an offense under Section 19.02 for
which the person is transferred to the court under Section
54.02(j)(2)(A), Family Code.
(b) Unless the juvenile court waives jurisdiction under
Section 54.02, Family Code, and certifies the individual for
criminal prosecution or the juvenile court has previously waived
jurisdiction under that section and certified the individual for
criminal prosecution, a person may not be prosecuted for or
convicted of any offense committed before reaching 17 years of age
except an offense described by Subsections (a)(1)-(5)
(c) No person may, in any case, be punished by death for an
offense committed while he was younger than 17 years.
Acts 1973, 63rd Leg., p. 883, ch. 399, § 1, eff. Jan. 1, 1974.
Amended by Acts 1975, 64th Leg., p. 2158, ch. 693, § 24, eff. Sept.
1, 1975; Acts 1987, 70th Leg., ch. 1040, § 26, eff. Sept. 1, 1987;
Acts 1989, 71st Leg., ch. 1245, § 3, eff. Sept. 1, 1989; Acts
1991, 72nd Leg., ch. 169, § 3, eff. Sept. 1, 1991; Acts 1993, 73rd
Leg., ch. 900, § 1.01, eff. Sept. 1, 1994.
Amended by Acts 1995, 74th Leg., ch. 262, § 77, eff. Jan. 1, 1996;
Acts 1997, 75th Leg., ch. 165, § 30.236, eff. Sept. 1, 1997; Acts
1997, 75th Leg., ch. 822, § 4, eff. Sept. 1, 1997; Acts 1997, 75th
Leg., ch. 1086, § 42, eff. Sept. 1, 1997; Acts 2001, 77th Leg.,
ch. 1297, § 68, eff. Sept. 1, 2001.