People v. Diaz CA5

CourtCalifornia Court of Appeal
DecidedMay 7, 2026
DocketF089058
StatusUnpublished

This text of People v. Diaz CA5 (People v. Diaz CA5) is published on Counsel Stack Legal Research, covering California Court of Appeal primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
People v. Diaz CA5, (Cal. Ct. App. 2026).

Opinion

Filed 5/7/26 P. v. Diaz CA5

NOT TO BE PUBLISHED IN THE OFFICIAL REPORTS California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA FIFTH APPELLATE DISTRICT

THE PEOPLE, F089058 Plaintiff and Respondent, (Super. Ct. No. MF015111A) v.

GREGORIO IDABET DIAZ, OPINION Defendant and Appellant.

THE COURT* APPEAL from a judgment of the Superior Court of Kern County. Tiffany E. Organ-Bowles, Judge. Patrick J. Hennessey, Jr., under appointment by the Court of Appeal, for Defendant and Appellant. Rob Bonta, Attorney General, Charles C. Ragland, Chief Assistant Attorney General, Kimberley A. Donohue, Assistant Attorney General, Ian Whitney and Joseph Penney, Deputy Attorneys General, for Plaintiff and Respondent. -ooOoo-

* Before Hill, P. J., Peña, J. and DeSantos, J. INTRODUCTION Defendant Gregorio Idabet Diaz (defendant) was convicted of driving under the influence of alcohol and driving with a blood-alcohol content of 0.08 percent or more. In a bifurcated proceeding, the trial court found true that defendant suffered a prior strike conviction of gross vehicular manslaughter while intoxicated. The trial court sentenced defendant to the middle term, doubled due to the strike. Defendant contends on appeal the court erred by imposing the middle term rather than granting probation or imposing the lower term. The People argue defendant was ineligible for probation and the court did not abuse its discretion in imposing the middle term. We agree with the People and affirm the judgment. PROCEDURAL SUMMARY On May 3, 2024, the District Attorney of Kern County charged defendant with driving under the influence of alcohol or drugs (Veh. Code, § 23152, subd. (a); count 1) and driving a vehicle with blood-alcohol content of 0.08 percent or more (Veh. Code, § 23152, subd. (b); count 2), with an allegation under Vehicle Code section 23550.5, subdivision (b) that defendant had previously been convicted of gross vehicular manslaughter while intoxicated (Pen. Code, § 191.5, subd. (a))1 for both counts. It was alleged defendant had served a prior prison term (see Cal. Rules of Court, rule 4.421(b)(3)) and suffered one prior strike conviction within the meaning of the Three Strikes law (§§ 667, subds. (a)–(e), 1170.12). A jury found defendant guilty of both counts. In a bifurcated proceeding, the trial court found the prior conviction allegation under Vehicle Code section 23550.5, subdivision (b), the prior prison term allegation and the prior strike conviction allegation true. Prior to sentencing, defendant filed a statement in mitigation, which included a

1 Hereinafter, undesignated statutory references are to the Penal Code.

2. Romero2 motion inviting the court to strike the prior strike conviction. The prosecution filed an opposition to the Romero motion along with a sentencing statement. On December 11, 2024, the trial court denied defendant’s Romero motion. The court sentenced defendant to the middle term of two years, doubled to four years due to the prior strike, on count 1. The same term was imposed but stayed, pursuant to section 654, on count 2. Defendant filed a timely notice of appeal. FACTUAL SUMMARY On July 29, 2022, at approximately 10:15 p.m., California Highway Patrol Officer Ryan Perez was on duty in a marked patrol vehicle when he observed a white truck in the “fast lane” drift into the center median and nearly hit a sign before swerving back into their lane. The truck continued to swerve in a serpentine motion, from left to right, crossing traffic lanes. Perez followed the truck for one or two miles, observing the driver as he continued to swerve in a serpentine manner. Perez initiated a traffic stop and the truck pulled over to the right shoulder. Perez approached the driver of the truck, who was identified as defendant, and immediately smelled alcohol coming from the vehicle, noted defendant was slow to react, and that defendant’s eyes were red and watery. Perez asked defendant why he was “all over the road,” and defendant said nothing was wrong and that he was on his way home after having dinner at a bar and grill. Defendant said he ate pizza and wings around 9:00 p.m. or 9:30 p.m. and admitted to consuming one large draft beer that day, starting at approximately 2:30 p.m. and finishing at 8:00 p.m. During their conversation, Perez noted defendant had red and watery eyes, a heavy odor of alcohol on his breath and person, and that defendant was slurring his words. Perez administered field sobriety tests, during which defendant exhibited numerous “clues” that he was under the influence of alcohol.

2 People v. Superior Court (Romero) (1996) 13 Cal.4th 497.

3. Defendant initially agreed to submit to a preliminary alcohol screening breath test. However, defendant would not adequately blow into the testing machine. Perez formed the opinion that defendant was over the legal limit of alcohol and was unsafe to drive. Perez arrested defendant and transported him to the hospital for a blood draw. Criminalist Idolina Fuentes from the Kern County Regional Crime Lab tested defendant’s blood sample, which yielded a 0.109 percent alcohol level at the time of the draw. Supervising criminalist David Zimmerman testified that alcohol impairment for safely operating a motor vehicle begins at 0.05 percent. Using retrograde analysis, he estimated defendant’s blood-alcohol level at approximately 0.121 percent to 0.139 percent at the time of the stop, depending on variability in elimination rate between 0.01 percent and 0.025 percent per hour. Zimmerman opined that a person in identical circumstances to defendant would be impaired for the purposes of safely operating a motor vehicle. DISCUSSION Relevant Factual and Procedural Background In 2009, defendant was convicted of two counts of gross vehicular manslaughter while intoxicated (§ 191.5, subd. (a)) and, driving under the influence and causing bodily injury to another person (Veh. Code § 23153, subds. (a), (b)). Defendant was sentenced to six years in state prison. Defendant was paroled in April 2014, and discharged from parole in April 2016. In his statement in mitigation for sentencing, defendant noted that he had not suffered any convictions since the 2009 offenses. Defendant asserted that during the “interim time” between his criminality, he had become “a duly employed citizen and an outstanding employee[,]” “active in his community through his church, and has had a positive impact on numerous people around him[.]” Defendant participated in “alcohol classes … in an attempt to address his alcohol issues.”

4. In opposition, the prosecution noted that defendant’s drinking and driving in 2009 “killed two people and injured a third” and was “convicted of three separate strike offenses.” The prosecution argued that taking the lives of two individuals and spending time in prison as a result should have had a deterrent effect on defendant. But it did not deter defendant, who chose to engage in the exact same conduct by drinking and driving again. The trial court imposed a four-year sentence offering the following explanation:

“Circumstances in mitigation are that [defendant] has a limited record of criminal conduct and that [defendant’s] prior performance on state parole was successful. Circumstances in aggravation are that [defendant] served a prior prison term.

“[Defendant], here’s the thing. I think you know probably better than anybody what happened several years ago was absolutely horrific. But the problem, sir, is that you didn’t learn. You didn’t learn.

Free access — add to your briefcase to read the full text and ask questions with AI

Related

People v. Superior Court (Romero)
917 P.2d 628 (California Supreme Court, 1996)
People v. Leung
5 Cal. App. 4th 482 (California Court of Appeal, 1992)
People v. Johnson
7 Cal. Rptr. 3d 492 (California Court of Appeal, 2004)
People v. Slayton
32 P.3d 1073 (California Supreme Court, 2001)
People v. Sandoval
161 P.3d 1146 (California Supreme Court, 2007)
People v. Duff
317 P.3d 1148 (California Supreme Court, 2014)
People v. Superior Court
928 P.2d 1171 (California Supreme Court, 1997)

Cite This Page — Counsel Stack

Bluebook (online)
People v. Diaz CA5, Counsel Stack Legal Research, https://law.counselstack.com/opinion/people-v-diaz-ca5-calctapp-2026.