FACTUAL AND PROCEDURAL BACKGROUND
On September 2, 2014, Buell pled guilty to felony driving with a blood alcohol level of .08 percent or higher in violation of Vehicle Code section 23152, subdivision (b), and admitted three prior convictions for driving under the influence. (See id ., § 23550, subd. (a).) The trial court sentenced Buell to the mitigated term of 16 months in county jail. Ten months were to be served in actual custody; six months were suspended and Buell was placed on mandatory supervision, subject to various terms and conditions, including that he consume no alcohol.
On November 20, 2014, Buell began mandatory supervision, and the Marin County Probation Department enrolled him in its Continuous Alcohol Monitoring Program. The program required Buell to wear an alcohol monitoring ankle bracelet provided and monitored by Alcohol Monitoring System (AMS), a private company.
A hearing on the petition was held on December 24, 2014. The prosecution's only witness was Shelley Mays, the lead case manager for the Marin County Probation Department who worked with the Continuous Alcohol Monitoring Program. Mays had received 10 weeks of training, 75 to 80 percent of which was devoted to the functioning of continuous alcohol monitoring devices. Mays testified that clients in the Continuous Alcohol Monitoring Program wear a bracelet attached to the ankle and pressed tightly against the skin. If the client consumes alcohol or attempts to tamper with the bracelet, the bracelet electronically notifies AMS. AMS provides Mays with a daily report of potential violations for all of Mays's clients. AMS will then analyze the report and will typically either confirm or otherwise resolve a report of a potential violation within 24 hours. When a client consumes alcohol, Mays testified, the bracelet measures changes from the client's baseline alcohol level as the level rises to the point of highest consumption and then goes back down. If the client tampers with the bracelet, the temperature gauge will measure the difference in the body temperature and the "IR" frequency will detect any difference in the distance between the bracelet and the skin.
Mays testified that a continuous alcohol monitoring bracelet was placed on Buell on November 20, 2014. On December 8, 2014, Mays received a potential alert for alcohol consumption and tampering from Buell's bracelet, and AMS confirmed that alert as a violation the next day.
The prosecution introduced a "client noncompliance report" for Buell prepared by AMS. The report includes a graph
On cross-examination, Mays was shown a preliminary report reflecting the same measurements as in the noncompliance report, but over a longer time frame, from November 26, 2014 until December 9, 2014. The report indicates several "spikes" in the "TAC" level on specified dates leading up to
After Mays's testimony concluded, the People rested. Buell presented no evidence. The trial court then found that Buell had consumed alcohol and tampered with his alcohol monitoring bracelet, and thereby violated the terms and conditions of his mandatory supervision. The trial court terminated Buell's mandatory supervision and ordered him to serve the balance of his sentence in custody, a period of 161 days. Buell appeals.
DISCUSSION
I. Standard of Review
A trial court may revoke mandatory supervision when it has reason to believe the person under supervision has committed another offense or otherwise has violated the terms of supervision. ( Pen. Code, § 1203.2, subd. (a).) The prosecution must prove the grounds for revocation by a preponderance of the evidence. ( People v. Rodriguez (1990)
II. Buell's Appeal Is Not Moot
The People first argue that Buell's challenge to his probation revocation is moot because Buell already has served the sentence imposed by the trial court and has been released from custody. Buell concedes he has completed his sentence, but argues his appeal is not moot because the probation violation is part of his permanent record and a successful appeal would clear
III. Substantial Evidence Supports the Trial Court's Order
Buell first argues that the trial court's decision to revoke his mandatory supervision was not supported by substantial evidence because: (1) AMS did not treat several smaller spikes in Buell's transdermal alcohol concentration (TAC) measurements as alcohol consumption events; and (2) AMS's conclusion that he consumed alcohol was uncorroborated hearsay which did not constitute substantial evidence.
We do not agree that AMS's treatment of the smaller spikes means the trial court's conclusion was unsupported by substantial evidence. As Mays testified, and as the AMS graph in evidence reflects, the alcohol level spike on December 8, 2014 was significantly larger-two and one-half times higher-than the other spikes reflected on the graph. Mays also testified it was not possible to have a false reading of alcohol consumption, but the smaller spikes could indicate an "interferent" or "atmospheric alcohol" in the form of cologne, mouthwash, or cleaning products. (See People v. Dorcent (N.Y. Crim. Ct. 2010)
Buell's second argument is that the conclusion in AMS's report that Buell had consumed alcohol was uncorroborated hearsay that does not constitute substantial evidence.
The determination whether hearsay evidence is trustworthy rests with the trial court and will not be disturbed on appeal absent an abuse of discretion. ( Brown , supra ,
The trial court could rely on the conclusions in AMS's report if it found the report and the circumstances under which it was prepared trustworthy. As noted, the Marin County Probation Office contracted with AMS to supply and monitor the continuous alcohol monitoring bracelets used in their program. AMS generated the consumption and tampering report admitted in this case as part of its regular course of business and pursuant to its agreement with the probation office. ( Brown , supra ,
Moreover, AMS's conclusion that Buell had consumed alcohol was corroborated at the hearing. The data reflected in the graph itself, which depicts an extraordinarily high spike in Buell's TAC gauge on the night of December 8, 2014, was presented to the court for its review. Buell did not challenge the accuracy of this underlying data in the trial court, nor does he do so on appeal. AMS's conclusion was also corroborated by Mays, who testified, based on her training and experience, that it was impossible for the bracelet to falsely detect alcohol consumption, that the spike on December 8, 2014 was not consistent with an atmospheric interferent, and that a significant alcohol spike in conjunction with a tamper event was consistent with alcohol consumption. We find this testimony, together with the data reflected in the AMS report, was sufficient to corroborate AMS's conclusion. The evidence presented at Buell's revocation hearing supported the trial court's decision.
We next consider Buell's argument that his defense counsel rendered ineffective assistance by not objecting to Mays's testimony and the AMS report as failing to meet the test set forth in Kelly , supra ,
The Kelly test "establish[es] the reliability of scientific testing and its scientific basis to determine its admissibility." ( People v. Lucas (2014)
The People argue that, had there been an objection, the first two prongs of the Kelly test could have been satisfied by citation to unanimous published opinions holding that ankle monitoring bracelet technology is generally accepted as reliable in the scientific community. (See People v. Dorcent , supra ,
K elly 's third prong requires that "the person performing the test in the particular case used correct scientific procedures." ( People v. Bolden (2002)
We find that Buell has not demonstrated a reasonable probability that, had an objection been raised based on Kelly 's third prong, a different result would have been reached. Buell does not argue that correct scientific procedures were not used, or that Mays could not have testified that they were. Mays testified she had been trained "[e]xtensively" on the functioning of the alcohol monitoring bracelet. She is the lead case manager of the alcohol monitoring program of the Marin County Probation Department. Mays also testified the ankle bracelet was installed correctly; otherwise it would not have provided readings. As noted, she testified, consistent with the reported cases, that it is not possible for the bracelet to falsely report consumption. We see no reason why Mays would not have been able to satisfy Kelly 's
The order revoking Buell's mandatory supervision is affirmed.
We concur:
Ruvolo, P.J.
Rivera, J.
Notes
Judge of the Superior Court of California, County of Contra Costa, assigned by the Chief Justice pursuant to article VI, section 6 of the California Constitution.
Mays testified that the "TAC" measures alcohol level and "IRDistance" essentially "measures the distance between the metal and the skin."
Frye v. United States (D.C. Cir. 1923)
Daubert v. Merrell Dow Pharms., Inc. (1993)
