This is no way to increase this blog's readership, but I wanted to note two recent cases on animal-related classifications. Compared to some other topics (dogfighting! whales!), definitions are a pretty boring topic, but they are the starting point for a lot of animal law discussions. I won't attempt to synthesize the cases, except to point out that poisoning of rodents is mentioned in both. One gets the sense that if, in several thousand years, animal law develops such that legislatures or courts are doing away with animal use, lethal "pest control" will be the last practice to go.
Last month, the Ninth Circuit In Merrifield v. Lockyer invalidated a statute that required a pest control license for people who deal with mice, rats, or pigeons, but not those who deal with other animals. The case involves an exemption to an exception, which makes the equal protection analysis a bit hard to follow. Although all pest control practitioners who used pesticides must obtain a license, the licensing for those who forgo the use of poison depends on which animal is being targeted. (It is not clear to what extent the practitioners who forgo pesticides otherwise use nonlethal means, though they appear to be have a wider range of tools than spray-to-kill.) The plaintiff alleged that the licensing for more common "pests" was irrational and designed only to stifle fair competition, and the court agreed:
[T]he licensing scheme in this case specifically singles out pest controllers like Merrifield in the exemption legislation. Needless to say, this type of singling out, in connection with a rationale so weak that it undercuts the principle of non-contradiction, fails to meet the relatively easy standard of rational basis review. Indeed, the record highlights that the irrational singling out of three types of vertebrate pests from all other vertebrate animals was designed to favor economically certain constituents at the expense of others similarly situated, such as Merrifield.
The court did not consider in its analysis (and the plaintiff apparently did not raise) the additional exclusion from licensing of practicioners who use nonpesticide means to control bees and wasps. Libertarian coverage is at Volokh Conspiracy, Positive Liberty, and plaintiff counsel's Freespace blog.
The other definitions/rodent case is the New Hampshire Supreme Court decision in State v. Pratte. The question was whether the defendant's bow and arrow qualified as a "deadly weapon" under a law banning felons from possessing a deadly weapon. A weapon is considered "deadly" if it is "capable of producing death or serious bodily injury." The prosecution claimed this was proved because the defendant had previously used the bow and arrow to kill a porcupine. The court rejected this claim as rendering that language unconstitutionally vague:
Taking the State’s interpretation to its logical conclusion, any “substance or thing” used to produce the death of any living thing is a deadly weapon under RSA 625:11, V.For example, a person using poison to rid his residence of rodents or some other pest has clearly used a substance to produce a death. Under the State’s interpretation, he or she would be in possession of a deadly weapon and, with the requisite underlying conviction, may be convicted of being a felon in possession of a deadly weapon.... Reading RSA 625:11, V with an ordinary level of common sense, we cannot conclude that an ordinary person would understand this statute to mean that the use of such an item would constitute possession of a deadly weapon.
The dissent draws a connection between physical violence against humans and violence against nonhumans: "Had a human being been in the porcupine’s place, the human being would at least have suffered a serious bodily injury." Its measuring stick though is still harm to humans (as the legislature no doubt intended). Like the majority, it can't resist a reference to pest control--it finds a mouse trap would not qualify as a deadly weapon.