Iowa Code
Iowa Code § 321J.18 (2026)
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This chapter does not limit the introduction of any competent evidence bearing on the question of whether a person was under the influence of an alcoholic beverage or a controlled substance or other drug, including the results of chemical tests of specimens of blood, breath, or urine obtained more than two hours after the person was operating a motor vehicle. 86 Acts, ch 1220, §18; 98 Acts, ch 1138, §23
\nNotes of Decisions
Cited in 12
cases (6 in the last 5 years), 1988–2025 · leading case: State v. Frescoln, 911 N.W.2d 450 (Iowa Ct. App. 2017).
State v. Frescoln, 911 N.W.2d 450 (Iowa Ct. App. 2017). “Iowa Code § 321J.18. Our supreme court has said this provision "expresses our legislature's intent that the chapter 'not .”
State v. Demaray, 704 N.W.2d 60 (Iowa 2005). “See Iowa Code § 321J.18 (“This chapter does not limit the introduction of any competent evidence bearing on the question of whether a person was under the influence of an alcoholic beverage .”
State v. Kelly, 430 N.W.2d 427 (Iowa 1988). “Section 321J.18 provides: This chapter does not limit the introduction of any competent evidence bearing on the question of whether a person was under the influence of an alcoholic beverage or a drug, including the results of chemical tests of specimens of blood, breath or urine…”
State v. Kjos, 524 N.W.2d 195 (Iowa 1994). “Iowa Code section 321J.18 specifically permits introduction of test results procured more than two hours after arrest notwithstanding other provisions of chapter 321J.”
State v. Hubka, 480 N.W.2d 867 (Iowa 1992). “…the influence,” despite the fact that the blood test was taken three hours after operation of a motor vehicle. See Iowa Code § 321J.18.”
State v. Dominguez, 482 N.W.2d 390 (Iowa 1992). “Iowa Code § 321J.18. We think it clear that there was sufficient substantial evidence from which a jury could conclude that Dominguez was under the influence of alcohol at the time of the accident.”
State of Iowa v. Colby Davis Laub (Iowa 2024). “(quoting Iowa Code § 321J.18). Relying on the statutory text and this court’s decisions in Oakley and Demaray, the court of appeals concluded “the State’s ability to obtain chemical testing is not limited to the provisions of chapter 321J so long as the procedure utilized…”
State of Iowa v. Colby Davis Laub (Iowa 2024). “(quoting Iowa Code § 321J.18). Relying on the statutory text and this court’s decisions in Oakley and Demaray, the court of appeals concluded “the State’s ability to obtain chemical testing is not limited to the provisions of chapter 321J so long as the procedure utilized…”
State of Iowa v. Alishia Sue Dawn Dewbre (Iowa Ct. App. 2022). “Iowa Code section 321J.18 makes it clear that implied-consent procedures are not the exclusive means for testing, as it notes “[t]his chapter does not limit the introduction of any competent evidence bearing on the question of whether a person was under the influence of an…”
State of Iowa v. Adam Mullen (Iowa Ct. App. 2024). “at 830 (quoting Iowa Code § 321J.18). Thus, “the implied consent statute is not the exclusive means by which law enforcement may obtain chemical testing.”
State of Iowa v. Jeffrey John Flynn (Iowa 2024). “” Iowa Code § 321J.18. In accord with the statute, we have thus concluded that chapter 321J did not preclude the administration of chemical testing when the defendant requested the test.”
State of Iowa v. Alexander Harrison Bachman (Iowa Ct. App. 2025). “§ 321J.18 (providing that the implied- consent statute “does not limit the introduction of any competent evidence .”
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