*809¶1 In this discretionary review of Jerrie L. Vander Houwen Sr.’s two convictions for second degree unlawful hunting of big game, we conclude the necessity jury instruction was proper, the verdicts were not inconsistent, and the evidence was sufficient. Accordingly, we affirm.
Brown, J.FACTS
¶2 The facts are agreed except where noted. Mr. Vander Houwen farms in Yakima County, including some 37 acres of new cherry trees. From 1998 into 2000, elk came through the Washington State Department of Fish and Wildlife’s fences onto Mr. Vander Houwen’s property causing significant damage. Mr. Vander Houwen attempted to repair the fences and to feed hay to the elk, but was unsuccessful in minimizing the damage. Mr. Vander Houwen alleged he complained to the Department on four occasions during the 1999-2000 winters about the elk damage.
¶3 In January 2000, Mr. Vander Houwen began shooting over the elks’ heads to drive them from his orchard. On January 12, he again complained to the Department. He told one of the Department’s officers there were about 40 elk in his orchard over the last couple days and shooting over their heads was not working. The officer told Mr. Vander Houwen the Department could not respond for about a week due to an upcoming holiday. Mr. Vander Houwen told the officer he could not wait that long, so he would have to start lowering his sights and shooting directly at the elk. He alleges (and the State disputes) the officer told him if he shot the elk he must let them lie.
*810¶4 A Department officer drove by his orchard on January 18 or 19 and saw dead elk, but did not stop. On January 27, 2000, the Department received another report of dead elk near Mr. Vander Houwen’s orchard. Two responding officers found 10 dead elk, some in and some out of Mr. Vander Houwen’s orchard. Using a metal detector, the officers located two slugs in two of the elk from a. 270 caliber rifle. Mr. Vander Houwen admitted shooting at the elk and owning a .270 caliber rifle.
¶5 Mr. Vander Houwen was charged with 10 counts of second degree unlawful hunting of big game and 10 counts of first degree waste of wildlife. No evidence was presented by the State relating a specific count to a specific elk. Mr. Vander Houwen presented the affirmative defense of necessity at trial, but the district court declined to give his constitutional right instruction based on State v. Burk, 114 Wash. 370, 195 P. 16 (1921). Instead, the trial court gave a necessity instruction based upon 11 Washington Pattern Jury Instruction: Criminal 18.02 (WPIC). The jury found Mr. Vander Houwen guilty solely of two counts of second degree unlawful hunting of big game. The superior court affirmed. We granted discretionary review.
ANALYSIS
A. Necessity Defense Jury Instructions
¶6 The issue is whether the trial court erred in rejecting Mr. Vander Houwen’s proposed jury instructions (1 and 7), and instead giving the jury WPIC 18.02, the necessity defense instruction (instruction 15).
¶7 RALJ 9.1(a) provides, “The superior court shall review the decision of the court of limited jurisdiction to determine whether that court has committed any errors of law.” RALJ 9.1(b) provides, “The superior court shall accept those factual determinations supported by substantial evidence in the record (1) which were expressly made by the court of limited jurisdiction, or (2) that may reasonably be *811inferred from the judgment of the court of limited jurisdiction.” We follow RALJ 9.1 as well. Spokane County v. Bates, 96 Wn. App. 893, 896, 982 P.2d 642 (1999).
|8 Proposed jury instruction 1 states: “One who kills elk in defense of his or her property is not guilty of violating the law if such killing was reasonably necessary for such purpose.” Clerk’s Papers (CP) at 181. Proposed jury instruction 7 states: “One who kills elk in defense of his or her property is not guilty of violating the law if such killing was reasonably necessary for the defense of his or her property.” CP at 236. Instead of giving either of these instructions, the court gave another instruction proposed by Mr. Vander Houwen (instruction 8), jury instruction 15 based on WPIC 18.02, at 63 (2d ed. Supp. 1998):
Necessity is a defense to a charge of unlawful big game hunting in the second degree and/or waste of wildlife in the first degree if
(1) the defendant reasonably believed the commission of the crime was necessary to avoid or minimize a harm; and
(2) the harm sought to be avoided was greater than the harm resulting from a violation of the law;
(3) the threatened harm was not brought about by the defendant; and
(4) no reasonable legal alternative existed.
This defense must be established by a preponderance of the evidence. Preponderance of the evidence means that you must be persuaded, considering all the evidence in the case, that it is more probably true than not true. If you find that the defendant has established this defense, it will be your duty to return a verdict of not guilty.
CP at 223.
¶9 We review a trial court’s refusal to give a proposed jury instruction for an abuse of discretion. State v. Picard, 90 Wn. App. 890, 902, 954 P.2d 336 (1998). We review de novo alleged errors of law injury instructions. Del Rosario v. Del Rosario, 152 Wn.2d 375, 382, 97 P.3d 11 (2004). Jury instructions are proper when they permit the *812parties to argue their theories of the case, do not mislead the jury, and properly inform the jury of the applicable law. Id.
¶10 First, Mr. Vander Houwen contends he has an absolute constitutional right to kill the elk. Proposed jury instructions 1 and 7 are derived from Burk, 114 Wash. 370. There, our Supreme Court recognized a necessity defense under facts similar to ours: “[i]t may be justly said that one who kills an elk in defense of himself or his property, if such killing was reasonably necessary for such purpose, is not guilty of violating the law.” Burk, 114 Wash, at 376 (emphasis added); See, e.g., State v. Bailey, 77 Wn. App. 732, 740, 893 P.2d 681 (1995) (necessity defense recognized in wildlife cases under limited circumstances where wildlife was killed to protect property).
¶[11 Mr. Vander Houwen mistakenly argues, under Burk, he was constitutionally permitted to kill in defense of his property in an absolute sense. We disagree. The Burk holding allows a necessity defense. Therefore, the trial court had a tenable basis to reject Mr. Vander Houwen’s proposed absolute defense instructions. State ex rel. Carroll v. Junker, 79 Wn.2d 12, 26, 482 P.2d 775 (1971).
¶12 Second, Mr. Vander Houwen contends the trial court improperly shifted the burden of proof in its necessity instruction. However, instruction 15 conforms to Mr. Vander Houwen’s alternative proposed jury instruction 8 found in Clerk’s Papers at 237. We are precluded from reviewing jury instructions when the defendant invites it. State v. Bradley, 141 Wn.2d 731, 736, 10 P.3d 358 (2000).
¶13 Moreover, instruction 15 did not improperly shift the burden of proof because it did not relieve the State of its burden to prove each crime element beyond a reasonable doubt. State v. Pirtle, 127 Wn.2d 628, 656, 904 P.2d 245 (1995). Here, the “to convict” jury instruction for unlawful hunting of big game put the burden on the State to prove beyond a reasonable doubt each element of the charged crime.
*813f 14 Washington uses a two-tiered test to evaluate whether the State or a defendant has the ultimate burden of proof for an affirmative defense. “First,' the court must determine whether the defense is an element of the crime or whether the defense negates an element of the crime .... Second, if there is no due process requirement, the court must determine whether the Legislature intended, nevertheless, to place the ultimate burden of persuasion on the State to prove the absence of the defense beyond a reasonable doubt.” State v. Lively, 130 Wn.2d 1, 10-11, 921 P.2d 1035 (1996) (citing State v. McCullum, 98 Wn.2d 484, 656 P.2d 1064 (1983)).
¶15 First, in applying the test, the necessity defense does not negate an element of an offense as does a consent defense in a rape case. Instead, a necessity defense attempts to justify, excuse, or explain otherwise proscribed end conduct in a way making that conduct lawful by exception. For example, instruction 6, the “to convict” instruction for the Unlawful Hunting charge required the State to prove Mr. Vander Houwen hunted elk without the necessary documentation or disregarded specified rules governing elk hunting (the end conduct). Unlike a rape prosecution, where the State retains the ultimate burden of disproving lack of consent beyond a reasonable doubt, the State has no ultimate burden of disproving defense of property.
¶16 Second, in common law, necessity is an affirmative defense. See State v. Niemczyk, 31 Wn. App. 803, 807, 644 P.2d 759 (1982) (“[N]ecessity is an affirmative defense and should not be considered by the jury unless the defendant has submitted substantial evidence to support it.”). Normally, affirmative defenses must be proved by the defendant by a preponderance of the evidence. State v. Riker, 123 Wn.2d 351, 366, 869 P.2d 43 (1994). The necessity instruction is consistent with these principles.
¶17 Accordingly, we conclude the court did not err in giving instruction 15.
*814B. Unanimity Instruction
¶18 Although the State separately charged Mr. Vander Houwen with 10 counts, he briefly argues he was entitled to a unanimity instruction because the State alleged he committed 10 different sets of illegal acts. However, this argument lacks a specific assignment of error as required under RAP 10.3(a)(3). An appellate court will not consider the merits of an issue if the appellant fails to raise the issue in the assignments of error section of the appellant’s brief in violation of RAP 10.3(a)(3). State v. Olson, 126 Wn.2d 315, 321, 893 P.2d 629 (1995). And, the issue was not argued below.
C. Evidence Sufficiency and Consistency of Verdicts
¶19 The issue is whether the guilty verdicts are supported by sufficient evidence and, if so, whether they are consistent with the not guilty verdicts in the other unlawful hunting counts and all not guilty verdicts in the waste of wildlife counts.
¶20 Evidence is sufficient to support a conviction if, viewed in the light most favorable to the State, it permits any rational trier of fact to find the essential elements of the crime beyond a reasonable doubt. State v. Salinas, 119 Wn.2d 192, 201, 829 P.2d 1068 (1992). “A claim of insufficiency admits the truth of the State’s evidence and all inferences that reasonably can be drawn therefrom.” Id. Circumstantial evidence and direct evidence are equally reliable. State v. Delmarter, 94 Wn.2d 634, 638, 618 P.2d 99 (1980). We “defer to the trier of fact on issues involving conflicting testimony, credibility of the witnesses, and the persuasiveness of the evidence.” State v. Hernandez, 85 Wn. App. 672, 675, 935 P.2d 623 (1997).
¶21 The law proscribes second degree unlawful hunting of big game when one:
(a) Hunts for, takes, or possesses big game and the person does not have and possess all licenses, tags, or permits required under this title;
*815(b) Violates any rule of the commission or director regarding seasons, bag or possession limits, closed areas including game reserves, closed times, or any other rule governing the hunting, taking, or possession of big game; or
(c) Possesses big game taken during a closed season for that big game or taken from a closed area for that big game.
RCW 77.15.410(1).
¶22 Here, the State alleged conduct (a) and (b). The agreed facts show several dead elk were found on Mr. Vander Houwen’s property and he admitted shooting at the elk. Additionally, two slugs from a .270 caliber rifle were found in two of the elk. Mr. Vander Houwen admitted owning a .270 caliber rifle. Based on the above, sufficient evidence exists to support Mr. Vander Houwen’s two convictions for second degree unlawful hunting of big game. Moreover, in raising the necessity defense Mr. Vander Houwen admits the proscribed end conduct.
¶23 We defer to the trier of fact on issues involving the persuasiveness of the evidence. Hernandez, 85 Wn. App. at 675. Regarding consistency, the jury could find the two slugs found in two elk solely supported two guilty verdicts. Seemingly inconsistent verdicts can be upheld “[w]here the jury’s verdict is supported by sufficient evidence from which it could rationally find the defendant guilty beyond a reasonable doubt.” State v. Ng, 110 Wn.2d 32, 48, 750 P.2d 632 (1988).
¶24 Affirmed.
Kurtz, J., concurs.