61. A state has the following statute in effect:
“No person shall sell, barter, furnish, or give to a minor under 16 years of age an air gun, rifle, shotgun, pistol, or other firearm; or being the owner or having charge or control thereof, knowingly permit it to be used by a minor under such age. Whoever violates this statute shall be fined not more than $1,500 (one thousand five hundred dollars), or imprisoned not more than 45 days, or both.”
A mother purchased an air rifle, which she gave to her son. The mother, a police officer, who was familiar with firearms, trained her son in the systematic practice of care in the use of the air rifle. One afternoon, the son, who was 15 years of age, was playing with his friends. The three boys took turns firing the air rifle, which discharged small pellets, at various targets in the son’s back yard. As one of the friends, who was 16 years old, was using the air rifle, he fired a shot over the other friend’s head, intending to frighten him. The pellet missed the other friend, but struck a next-door neighbor in the eye, severely injuring her.
The mother is subsequently charged with violating the state statute. As her defense, the mother claims that she erroneously believed the statute prohibited firearms to be given or sold to minors under 15 years of age.
If the mother’s mistaken belief is honest, it should
(A) result in her acquittal, because she didn’t have the necessary mental state required for the crime.
(B) result in her acquittal, because the friend is 16 years of age or older.
(C) not prevent her conviction, because mistake of law is no defense.
(D) not prevent her conviction, because mistake of fact is no defense.
6i. (C) As a general rule, ignorance or mistake as to a matter of fact or law is a defense if it negates a mental state required to establish a material element of the crime. H ow- ever, LaFave states that a “quite different kind of mistake of law, whereby the defendant believes that his conduct is not proscribed by the criminal law, is generally not a defense.” Criminal Law, pg. 356. Choices (A) and (B) are incorrect because the statute may be violated in either of two ways. First, anyone who gives, sells, or furnishes an air gun (or firearm) to a minor is guilty of violating the statute. Second, anyone who is the owner or in control of a firearm and who knowingly permits it to be used by a minor is also in violation of the statute (which imposes strict criminal liability). In the present case, the mother violated the first section of the statute by giving the air rifle to her son, who was underthe statutory age. Choice (D) is incorrect because a mistake of fact, which is not present in our question, can be a defense.