People v. Gineris

162 Cal. App. Supp. 3d 18, 209 Cal. Rptr. 317, 1984 Cal. App. LEXIS 2864
Appellate Division of the Superior Court of California·Decided November 7, 1984·No. Crim. A. No. 21337·Published·Cited by 7 cases

Opinion

Opinion

BERNSTEIN, Acting P. J.

Defendant appeals from his conviction by a jury of a violation of Vehicle Code section 23152, subdivisions (a) (driving while under the influence) and (b) (driving with a blood-alcohol level of 0.10 percent or more). Appellant was also found to have a prior driving-while-under-the-influence conviction.

The Vehicle Code Section 23152,

Subdivision (b) Charge

Appellant contends the evidence was insufficient to support the Vehicle Code section 23152, subdivision (b) conviction. In considering this issue [Supp. 22]*Supp. 22we are confronted with the question of who should bear the burden of proof of establishing the partition ratio of the individual defendant.

In order to establish a violation of Vehicle Code section 23152, subdivision (b), “the People . . . must prove beyond a reasonable doubt that at the time (the defendant) was driving his blood alcohol exceeded 0.10 percent.” (Burg v. Municipal Court (1983) 35 Cal.3d 257, 265 [198 Cal.Rptr. 145, 673 P.2d 732].) Generally this will have to be established by circumstantial evidence (see id., at p. 266, fn. 10) which in many cases will be by a test, the results of which will have to be converted to a blood-alcohol ratio. Although the defendant may refute the accuracy of the test results, the People must first meet their burden of proof by presenting substantial evidence that the defendant’s blood-alcohol level was 0.10 percent or more at the time of the driving. The People must present sufficient evidence from which it could reasonably be deduced that the defendant’s blood-alcohol level was 0.10 percent or more. (See People v. Reilly (1970) 3 Cal.3d 421, 424-425 [90 Cal.Rptr. 417, 475 P.2d 649]; see also People v. Campos (1982) 138 Cal.App.3d Supp. 1 [188 Cal.Rptr. 366].)

As to the subdivision (b) charge, the following evidence was presented by the People; Appellant was driving at 12:05 a.m. on January 28, 1983. He was given a breath test at 12:35 a.m., the results of which were 0.11 percent and 0.11 percent. The test was properly administered and the machine was functioning properly. The test results were accurate to a plus or minus 0.01 percent blood-alcohol level.

Based upon this error factor the machine results showed appellant to have a blood-alcohol level ranging from 0.10 percent to 0.12 percent. There was also testimony that the machine correlates the initial breath results to the blood-alcohol level by using a partition ratio of 2,100 to 1. This ratio is mandated by title 17 of the California Administrative Code (Cal. Admin. Code, tit. 17, § 1220.4, subd. (f)) and represents an average ratio for that of the general public. However, it is just an average—and on an individual basis there could be as much as a 50 percent error margin. The People’s expert testified that taking into account the possible variations in the human partition ratio, the time interval between the driving and the test, and the error margin of the machine reading, he could not say beyond a reasonable doubt that appellant had a 0.10 percent blood-alcohol level at the time of driving.

The expert was testifying based upon his scientific knowledge. However the Legislature, in response to the dangers posed to the public by the drunk driver, (see Burg v. Municipal Court, supra, 35 Cal.3d at pp. 262-264) has enacted certain presumptions applicable to this charge. The Legislature pro[Supp. 23]*Supp. 23vided that if the results of a test given within three hours of driving are 0.10 percent or more, it is a rebuttable presumption that the defendant had a 0.10 percent or more blood-alcohol level at the time of driving. (Veh. Code, § 23152, subd. (b).) In enacting this provision the Legislature was making the presumption which already was applicable to Vehicle Code section 23152, subdivision (a) (Veh. Code, § 23155, subd. (a)(3)) similarly applicable to the subdivision (b) charge. (Stats. 1982, ch. 1337, Summary Dig., vol. 6, pp. 478-479.) This presumption has been held to be constitutionally valid. (People v. Schrieber (1975) 45 Cal.App.3d 917 [119 Cal.Rptr. 812].) As to the partition ratio, the Legislature has not enacted a statutory presumption. However we hold that the judicially established “rule of convenience” is applicable to the partition ratio and by its operation the defendant is in effect presumed to have a 2100 to 1 partition ratio unless he presents evidence to the contrary.

The courts have held that if a defendant is best able to produce an item of evidence and it would not be unduly harsh or unfair to require him to do so, then the People are relieved of their burden of producing this evidence. (People v. Yoshimura (1979) 91 Cal.App.3d 609, 626-629 [154 Cal.Rptr. 314]; People v. Montalvo (1971) 4 Cal.3d 328, 334 [93 Cal.Rptr. 581, 482 P.2d 205, 49 A.L.R.3d 518]; People v. Boo Doo Hong (1898) 122 Cal. 606 [55 P. 402].)

The defendant’s individual partition ratio is presumably obtained by means of an examination which he is best able to obtain by submitting himself privately for such scrutiny. He can, however, avoid the additional expense and trouble which may be involved in submitting to such an examination by choosing to take the blood test when the chance is presented pursuant to Vehicle Code section 13353.

From the evidence presented, herein, i.e., the machine was in proper working order; had an error factor of 0.01 percent, and based upon an average partition ratio, the result of 0.11 percent for appellant was sufficient evidence for the jury to have reasonably deduced that appellant was driving with a blood-alcohol level of 0.10 percent or more. In the absence of any evidence that appellant’s partition ratio deviated from the norm, we hold that substantial evidence supports the Vehicle Code section 23152, subdivision (b) conviction.

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People v. Gineris, 162 Cal. App. Supp. 3d 18, 209 Cal. Rptr. 317, 1984 Cal. App. LEXIS 2864 (Cal. Ct. App. 1984).

162 Cal. App. Supp. 3d 18 (People v. Gineris) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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