¶1 J.C. Johnson1 was convicted of five crimes related to several days of ongoing domestic violence against his wife. We review two holdings by the Court of Appeals. First, the Court of Appeals overturned Johnson’s unlawful imprisonment conviction because the State did not include the definition of “restrain” in the information charging him with the crime. We reverse the Court of Appeals and reinstate Johnson’s conviction because charging documents need contain only the essential elements of a crime, not related definitions. Second, the Court of Appeals agreed with Johnson that it was error to give a jury instruction on the generic definition of “reckless” for the charge of assault in the second degree but held that his counsel was not ineffective for proposing it because no court had yet ruled on the issue. On this issue we affirm the Court of Appeals, but for a different reason. It is not error to instruct the jury on the generic definition of “reckless” as long as the jury is also given a “to convict” instruction that lists every element of the crime the State needs to prove in order to convict the defendant, including the charge-specific language for “reckless.”
FACTS
¶2 A jury convicted Johnson for acts of domestic violence against his wife, J.J.2 For three days Johnson kept J.J. in their apartment under his control. Johnson would not let her get dressed while inside, and she only went out of the apartment accompanied by him. At times, Johnson used his *299130-pound rottweiler to restrain her movements. J.J. testified that he kept a knife and an ice pick near the bed to intimidate her. J.J. also testified that she did not feel free to leave, in part, because he threatened to hurt her children from a previous marriage.
¶3 During those three days, Johnson severely injured J.J. He choked her on multiple occasions. J.J. testified that he also hit her with rocks and allowed his rottweiler to bite her. J.J. also testified that he grabbed her and slammed her down so that she hit her neck. Johnson admitted at trial that he “shoved her hard” and she fell and hit her head. Report of Proceedings (Dec. 14, 2010) at 33-34.
¶4 J.J. finally escaped after Johnson threatened to kill her by suffocating her with duct tape. J.J. ran from the house in her underwear when he turned his back on her, and found help from a neighbor. J.J. received treatment for her injuries, which included dog bites, bruises, and severe swelling — especially around her face and throat.
¶5 The State charged Johnson with five crimes, including unlawful imprisonment and second degree assault for intentionally assaulting another and thereby recklessly inflicting substantial bodily harm. The jury convicted Johnson on all counts, and Johnson appealed. The Court of Appeals held that the information for the unlawful imprisonment charge was insufficient because it left out the definition of “restrain.” State v. Johnson, 172 Wn. App. 112, 136-40, 297 P.3d 710 (2012). The court also held that the jury instruction defining “reckless” for the assault charge improperly lowered the State’s burden of proof but that defense counsel was not deficient for proposing it. Id. at 133. We granted review of those two issues only. State v. Johnson, 178 Wn.2d 1001, 308 P.3d 642 (2013).
ISSUES
¶6 1. Was the information for the unlawful imprisonment charge sufficient even though it did not include the definition of “restrain?”
*300¶7 2. Did defense counsel provide ineffective assistance by proposing a definition of “reckless” in the jury instructions that did not include charge-specific language when the “to convict” instruction included the specific language?
STANDARD OF REVIEW
¶8 Johnson challenges the sufficiency of the information on constitutional grounds. “We review allegations of constitutional violations de novo.” State v. Siers, 174 Wn.2d 269, 273-74, 274 P.3d 358 (2012). He also challenges the jury instructions in his case. “We review jury instructions de novo.” State v. Levy, 156 Wn.2d 709, 721, 132 P.3d 1076 (2006).
ANALYSIS
1. The Information Was Constitutionally Sufficient
¶9 In criminal cases, the accused has the constitutional right to know the charges against them. U.S. Const. amend. VI; Wash. Const. art. I, § 22. The State formally gives notice of the charges in the information, also known as the charging document. See CrR 2.1(a)(1) (“[T]he information shall be a plain, concise and definite written statement of the essential facts constituting the offense charged.”).
¶10 The information is constitutionally sufficient “only if all essential elements of a crime, statutory and nonstatutory, are included in the document.” State v. Vangerpen, 125 Wn.2d 782, 787, 888 P.2d 1177 (1995). “ ‘An essential element is one whose specification is necessary to establish the very illegality of the behavior charged.’ ” State v. Zillyette, 178 Wn.2d 153, 158, 307 P.3d 712 (2013) (internal quotation marks omitted) (quoting State v. Ward, 148 Wn.2d 803, 811, 64 P.3d 640 (2003)). This essential elements rule exists “to apprise the accused of the charges against him or her and to allow the defendant to prepare a defense.” Vangerpen, 125 Wn.2d at 787. If the State fails to *301allege every essential element, then the information is insufficient and the charge must be dismissed without prejudice. State v. Nonog, 169 Wn.2d 220, 226 n.3, 237 P.3d 250 (2010).
¶11 Johnson was charged with unlawful imprisonment under former RCW 9A.40.040 (1975). That statute reads, “A person is guilty of unlawful imprisonment if he knowingly restrains another person.” The information at issue in this case reads as follows:
And I, Daniel T. Satterberg, Prosecuting Attorney aforesaid further do accuse J.C. JOHNSON of the crime of Unlawful Imprisonment - Domestic Violence, based on a series of acts connected together with another crime charged herein, committed as follows:
That the defendant J.C. JOHNSON in King County, Washington, during a period of time intervening between May 4, 2009 through May 6, 2009, did knowingly restrain [J.J.], a human being;
Contrary to RCW 9A.40.040, and against the peace and dignity of the State of Washington.
Clerk’s Papers (CP) at 18. Johnson argues that the information is deficient because it does not include the statutory definition of “restrain.” “Restrain” is defined as “to restrict a person’s movements without consent and without legal authority in a manner which interferes substantially with his liberty.” Former RCW 9A.40.010(1) (1975).
¶12 Johnson relies on State v. Warfield, 103 Wn. App. 152, 157, 5 P.3d 1280 (2000), where the Court of Appeals held that the term “knowingly” in the unlawful imprisonment statute modifies every aspect of the term “restrain.” Thus, the court held that the State must prove that the defendant knew that the restraint was (1) without consent and (2) without legal authority, in a manner that interfered substantially with the victim’s liberty. Id. Johnson argues that this definition is an essential element of the crime that must appear in the information because the State must *302prove that he knew that he lacked legal authority to restrain the victim. We disagree.
A. The Information Does Not Need To Include Definitions
¶13 The State need not include definitions of elements in the information. It was enough that the State alleged all of the essential elements found in the unlawful imprisonment statute, former RCW 9A.40.040. We have never held that the information must also include definitions of essential elements. In fact, we have rejected similar arguments before.
¶14 In State v. Allen, 176 Wn.2d 611, 626-27, 294 P.3d 679 (2013), the defendant was charged with felony harassment under RCW 9A.46.020, which makes it a crime to “knowingly threaten! ] . . . [t]o cause bodily injury.” RCW 9A.46.020(1)(a)(i). The State did not include in the information the constitutional limitation that only true threats may be charged, and the defendant argued that this omission was error. Allen, 176 Wn.2d at 626-27. We disagreed. Importantly, we noted, “We have never held the true threat requirement to be an essential element of a harassment statute.” Id. at 628. Rather, “ ‘the constitutional concept of “true threat” merely defines and limits the scope of the essential threat element in the felony telephone harassment statute and is not itself an essential element of the crime.’ ” Id. at 630 (quoting State v. Tellez, 141 Wn. App. 479, 484, 170 P.3d 75 (2007)). Thus, we found no error in the information that did not include the “true threat” concept. Id.
¶15 The reasoning in Allen applies to this case. Like the “true threat” concept, the definition of “restrain” defines and limits the scope of the essential elements. That does not make the definition itself an essential element that must be included in the information. In this case, the information *303included all of the essential elements, and therefore we hold that it was constitutionally sufficient.3
¶16 Johnson argues that the definition of “restrain” expands rather than limits the scope of the mens rea element because the State must prove that the defendant knew that the restraint was without legal authority. That argument relies entirely on the Court of Appeals’ holding in Warfield. We take this opportunity to examine that case further.
B. Warfield Involved a Unique Set of Facts and Does Not Apply Here
¶17 Johnson is misguided in relying on Warfield for the proposition that the definition of “restrain” is an essential element because the State must prove that he knew he did not have legal authority to restrain his wife. Warfield involved a group of bounty hunters who had a good faith belief that they had the legal authority to catch, restrain, and return a person to Arizona, where there was a warrant for the person’s arrest. 103 Wn. App. at 154-55. The State charged them with unlawful imprisonment because the Arizona warrant — which turned out to be for a misdemeanor — had no lawful effect in Washington, and the trial court denied their motion to dismiss based on the defense that they thought they had legal authority to restrain the victim. Id. at 155. The Court of Appeals reversed and, as noted above, held that the State must prove that the defendants knew they lacked legal authority to restrain the victim. Id. at 157. Because it was undisputed that the defendants believed they had legal authority to restrain the victim, the Court of Appeals dismissed the charges. Id. at 159. The court never discussed what must be included in the information.
*304¶18 Because the Warfield defendants had a good faith belief that they had legal authority to restrain the victim, Warfield is a unique case. The Warfield court’s logic does not extend to most unlawful imprisonment cases — particularly those involving domestic violence — where there is no indication that the defendants believed they actually had legal authority to imprison the victim. Today we clarify that Warfield’s holding is limited to those unique cases where the defendant had a good faith belief that he or she had legal authority to imprison a person.
2. Counsel Was Not Ineffective for Proposing the Jury Instruction Defining “Reckless” That Was Used at Trial
¶19 Johnson challenges his conviction of assault in the second degree, arguing that his counsel was ineffective for proposing the definition of “reckless” that was used in the jury instructions at trial. Under the Sixth Amendment to the United States Constitution, a criminal defendant has the constitutional right to effective assistance of counsel. Strickland v. Washington, 466 U.S. 668, 685-86, 104 S. Ct. 2052, 80 L. Ed. 2d 674 (1984). To show ineffective assistance of counsel, a petitioner must show that defense counsel’s performance was deficient and that counsel’s errors prejudiced the defendant’s ability to receive a fair trial. Id. at 687; State v. McFarland, 127 Wn.2d 322, 334-35, 899 P.2d 1251 (1995).
¶20 The State charged Johnson with assault under former RCW 9A.36.021(1)(a) (2007), which provides that a person is guilty of second degree assault if he or she “[intentionally assaults another and thereby recklessly inflicts substantial bodily harm.” Using that language, the “to convict” instruction in this case read:
To convict the defendant of the crime of assault in the second degree, as charged in count II, each of the following elements of the crime must be proved beyond a reasonable doubt:
(1) That during the time intervening between May 4, 2009 and May 6, 2009, the defendant intentionally assaulted [J.J.];
*305(2) That the defendant thereby recklessly inflicted substantial bodily harm on [J.J.]; and
(3) That the acts occurred in the State of Washington.
CP at 49 (emphasis added). Johnson does not challenge this instruction. Rather, he faults his counsel for proposing the general definition of “reckless” also given to the jury. That instruction — based on the Washington Practice: Washington Pattern Jury Instructions: Criminal (WPIC) — read:
A person is reckless or acts recklessly when he or she knows of and disregards a substantial risk that a wrongful act may occur and this disregard is a gross deviation from conduct that a reasonable person would exercise in the same situation.
When recklessness as to a particular fact or result is required to establish an element of a crime, the element is also established if a person acts intentionally or knowingly as to that fact or result.
CP at 42 (emphasis added). He argues that the general instruction regarding recklessness lowered the State’s burden of proof because the phrase “a wrongful act” was used instead of the more charge-specific language “substantial bodily harm.” The Court of Appeals agreed that under current Court of Appeals precedent, the charge-specific language must be used in the definition of “reckless,” but the court found that counsel provided effective assistance because the trial occurred prior to the 2011 Court of Appeals cases that held that charge-specific language must be used in the definition of “reckless.” Johnson, 172 Wn. App. at 133 (citing State v. Peters, 163 Wn. App. 836, 261 P.3d 199 (2011); State v. Harris, 164 Wn. App. 377, 263 P.3d 1276 (2011)).
¶21 We affirm the Court of Appeals, but for a different reason. Johnson received effective assistance but not because the Court of Appeals had yet to rule on the issue. Rather, the generic instruction defining “reckless” was sufficient without the charge-specific language given that the “to convict” instruction included the proper language.
*306¶22 We consider challenges to jury instructions in the context of the jury instructions as a whole. State v. Pirtle, 127 Wn.2d 628, 656, 904 P.2d 245 (1995). “Jury instructions, taken in their entirety, must inform the jury that the State bears the burden of proving every essential element of a criminal offense beyond a reasonable doubt.” Id. (emphasis added). Specifically, the “ ‘to convict [jury] instruction must contain all of the elements of the crime because it serves as a yardstick by which the jury measures the evidence to determine guilt or innocence.’ ” State v. Sibert, 168 Wn.2d 306, 311, 230 P.3d 142 (2010) (alteration in original) (internal quotation marks omitted) (quoting State v. Smith, 131 Wn.2d 258, 263, 930 P.2d 917 (1997)). We will not look to other jury instructions to supplement a defective “to convict” instruction. Id.
¶23 Taken in their entirety, the instructions in this case were sufficient. The “to convict” instruction properly laid out the elements of the crime. It identified the wrongful act contemplated by Johnson as “substantial bodily harm.” Separately providing a generic definition of “reckless” did not relieve the State of its burden of proof. The “to convict” instructions are the primary “yardstick” the jury uses to measure culpability, and here they were accurate. The Court of Appeals incorrectly concluded that the definitional instruction also had to use the charge-specific language.
¶24 Under the reasoning of the Court of Appeals, any crime where recklessness is an element would require charge-specific language in both the “to convict” instructions and the general instruction on the definition of “reckless.” See Harris, 164 Wn. App. at 385 (requiring the substitution of “wrongful act” in the WPIC general definition of “reckless” with the statutory language for assault in the first degree, even when the “to convict” instruction properly described the specific wrongful act). If we adopted this reasoning, jury instructions could never include a general definition of “reckless.”
¶25 That implication is problematic. A jury could face great confusion in cases where a defendant is charged with *307multiple crimes that require multiple “reckless” definitions. The State offers the example of a defendant charged with drive-by shooting, assault in the second degree, and reckless endangerment — all of which aim to prevent a unique harm. See RCW 9A.36.045, .021, .050. Under the reasoning of the Court of Appeals, separate definitions of “reckless” would be needed for each crime, causing confusion and adding unnecessary repetition to the jury instructions.
¶26 Additionally, when the reasoning of the Court of Appeals is applied to other crimes, the “reckless” definitions become unduly confusing. For example, if a court added the charge-specific language needed for criminal mistreatment in the second degree, the instruction regarding the definition of “recklessness” would read:
A person is reckless or acts recklessly when he or she knows of and disregards a substantial risk that an imminent and substantial risk of death or great bodily harm may occur and this disregard is a gross deviation from conduct that a reasonable person would exercise in the same situation.
See RCW 9A.42.030(1); RCW 9A.08.010(1)(c). The added language makes the definition confusing given the multiple layers of substantial risks contemplated. In some cases, parties may consider adding charge-specific language to the “reckless” definition, as the WPIC recommends. 11 WPIC 10.03 cmt. at 209 (3d ed. 2008). But it is not error to use the generic definition of “reckless” when the “to convict” instruction contains all of the essential elements, including the charge-specific language for recklessness. Having found that no error occurred, we hold that counsel provided effective assistance.
CONCLUSION
¶27 We hold that the charging information for Johnson’s unlawful imprisonment charge was constitutionally sufficient because it needed to contain only the essential ele*308ments of the crime, not related definitions. We reverse the Court of Appeals on this issue and reinstate Johnson’s conviction for unlawful imprisonment. We also hold that Johnson’s counsel was not ineffective for proposing a jury instruction on the generic definition of “reckless” for the second degree assault charge because we review instructions as a whole, and here the “to convict” instruction accurately expressed the essential elements of the crime. We affirm the Court of Appeals on this issue, albeit for different reasoning.
Madsen, C.J.; C. Johnson, Fairhurst, Stephens, and González, JJ.; and J.M. Johnson, J. Pro Tem., concur.J.C. uses his initials as his legal name and is referred to hereinafter as “Johnson.”
We use J. J.’s initials to protect her privacy.
We note that our decision resolves a split in the Court of Appeals. After we issued our decision in Allen, a different panel of the same division properly held that the information does not need to include the definition of “restrain.” State v. Rattana Keo Phuong, 174 Wn. App. 494, 545, 299 P.3d 37 (2013).