Opinion
Rоbert Lacbman appeals a judgment of, conviction for felony drunk driving. (Veh. Code, § 23101.)
Shortly after midnight on 25 December 1969 Laсhman was drag racing in a 1969 Road Runner at 75 to 95 miles per hour on Sunset Boulevard in Pacific Palisades. Ahead of him Christophеr Marvin was driving a van on Sunset at 25 to 35 miles per hour. As Marvin started to change lanes Lachman’s car collided with his van, as a consequence of which Laura Harvey, a passenger in the van, suffered severe injuries.
According to Los Angelеs Police Officer Mahoe, Lachman had “strong alcohol” on his breath, his speech was slurred, and his eyes were wаtery. Lachman told Mahoe he was the other party to the accident, and a witness at the scene said Laсhman’s car had collided with the van. Mahoe concluded Lachman was under the influence of liquor, arrested him for drunk driving, аnd secured a sample of his urine. The police chemist who analyzed the sample found a blood alcohоl level of .14 percent and concluded that, depending on objective symptoms, Lachman had probably been under the influence of intoxicating liquor.
Vehicle Code section 23126 provides in pertinent part: “(a) Upon the trial оf any criminal action ... the amount of alcohol in the person’s blood at the time of the test as shown by chemical analysis of his blood, breath, or urine shall give rise to the following presumptions affecting the burden of proof:
“(3) If there wаs at that time 0.10 per cent or more by weight of alcohol in the person’s blood, it shall be presumed that the persоn was under the influence of intoxicating liquor at the time of the alleged offense.”
Lachman’s principal contention is that the use of this presumption vio *1097 lated “the fundamental and basic rule that defendant is presumed innocent until proven guilty beyond a reasonable doubt.”
We find this contention unpersuasive. First, the record does not indicate that the trial court relied on the presumption in convicting Lachman or that the result would have been materially affected had the presumption not been used. (See
People
v.
Fitzgerald,
Second, no objection to the use of the presumрtion, if it was used, was made at the trial.
Third, the presumption is neither unfair nor unconstitutional. A statutory presumption affecting thе burden of proof in a criminal cause does not alter the People’s duty to prove defendant’s guilt beyond a rеasonable doubt. It merely allows proof of an ultimate fact by permitting that fact to be presumed from proоf of a preliminary fact. Whether the ultimate fact is proved by direct evidence or by a presumption which arises from proof of a preliminary fact, the defendant’s burden of rebuttal remains the, same: he need only raise a rеasonable doubt as to the sufficiency of the proof of the ultimate fact. (Evid. Code, § 607;
DeWoody
v.
Superior Court,
The use of a statutory prеsumption in a criminal cause may infringe upon due process of law “unless it can at least be said with substantial assurance that the presumed fact is more likely than not to flow from the proved fact on which it is made to depend.”
(Leary
v.
United States,
*1098
The presumрtion in Vehicle Code section 23126, subdivision (a)(3), is not based on speculation but is founded on the long-recognized and scientifically established relationship between blood alcohol level and degree of intoxication. At bench thе chemist, an experienced researcher in the significance of alcohol readings, testified that “an individual with a blood alcohol percentage falling with this range [from .10 to .15 per cent blood alcohol] will be probably undеr the influence of alcohol, for it is within this range, if not in the previous .05 to .10 range, that all persons will come under the influenсe of alcohol. ...” (See also
Lawrence
v.
City of Los Angeles,
Lachman’s other contentions may be summarily rejected. Officer Mahoе had probable cause to arrest Lachman for drunk driving
(People
v.
Lane,
The judgment (order of probation) is affirmed.
Roth, P. L, and Herndon, J., concurred.
Appellant’s petition for a hearing by the Supreme Court was denied May 10,1972.
