State v. Doyle, 245 P.3d 206

Background

Doyle was convicted of possession or use of a controlled substance and possession of drug paraphernalia in Utah.
The State’s key witness, Cuenca, testified inconsistently about receiving a plea deal for her testimony.
Doyle argued the prosecutor knew Cuenca lied and failed to correct the testimony, constituting misconduct.
Doyle contended the State violated discovery obligations by withholding Cuenca’s plea agreements, breaching Rule 16 and Brady-related duties.
The State admitted evidence of Doyle’s prior drug use (and related acts) under Rule 404(b) to prove intent and possession, which Doyle challenged as unfairly prejudicial.
The trial court denied Doyle’s motions to dismiss/arrest judgment and to admit limited prior-acts evidence, and Doyle appealed.
The appellate court affirmed the convictions, recognizing prosecutorial misconduct but finding no prejudice in the overall verdict.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Prosecutorial misconduct and discovery violations violated Doyle’s rights?	Doyle argues prosecutor knew Cuenca lied and failed to correct; discovery withholdings violated Rule 16 and Brady.	State’s actions prejudiced Doyle by withholding material impeachment evidence.	No reversal; no prejudice to verdict despite misconduct.
Brady/ discovery obligations were satisfied despite withholding plea agreements?	State must disclose exculpatory/impeachment material without request.	State’s withholding of Cuenca’s plea agreements violated Brady/Rule 16.	No Brady violation given Doyle impeachment and defense strategy; no reversal.
Admission of Doyle’s prior bad acts evidence admissible under Rule 404(b)?	Prior meth convictions establish intent and absence of mistake; probative value outweighs prejudice.	Bad acts evidence was prejudicial and not sufficiently probative.	Evidence properly admitted under 404(b) with balancing under 403; no abuse of discretion.
Waiver of discovery objections by not timely requesting relief?	Doyle waived relief by delay; the court’s denial was correct.	Discovery violation nonetheless prejudicial; relief should have been granted.	Waiver applied; no prejudice shown.
Prosecutor’s overall misconduct warrants sanctions beyond this conviction?	Prosecutor engaged in multiple rules violations and failed to correct false testimony.	Despite misconduct, the verdict remained sound due to defense impeachment.	Court notes misconduct but emphasizes no prejudice to the ultimate verdict.

Key Cases Cited

State v. Gordon, 886 P.2d 112 (Utah Ct.App. 1994) (duty to correct known false testimony; potential reversal if prejudice)
United States v. Bagley, 473 U.S. 667 (1985) (materiality of non-disclosure; impeachment evidence can be material)
Napue v. Illinois, 360 U.S. 264 (1959) (prosecutor may not knowingly use false evidence)
State v. Rugebregt, 965 P.2d 518 (Utah Ct.App. 1998) (two independent duties to provide evidence; Rule 16 obligations)
State v. Bisner, 2001 UT 99, 37 P.3d 1073 (Utah 2001) (Brady-related standards; impact on prejudice)
Medel v. State, 2008 UT 32, 184 P.3d 1226 (Utah 2008) (discovery obligations and mitigation of prejudice)
State v. Basta, 966 P.2d 260 (Utah Ct.App. 1998) (prejudice standard for discovery violations)
State v. Shickles, 760 P.2d 291 (Utah 1988) (Shickles factors for 403 balancing of bad acts evidence)
State v. Taylor, 818 P.2d 561 (Utah Ct.App. 1991) (necessity and probative value of prior acts evidence)
State v. Cox, 787 P.2d 4 (Utah Ct.App. 1990) (prior bad acts admissible when constitutive element or pertinent to issue)
State v. Allen, 2005 UT 11, 108 P.3d 730 (Utah 2005) (rule 404(b) purposes and admissibility)