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Cal.App.4th 1227, 1232; Evid. Code, § 664.) The presumption can, of course, be challenged by a licensee at the hearing, as in this case. If the presumption is rebutted, “ ‘the burden shifts to the DMV to prove that the test was reliable despite the violation.’ ” (Roze. v. Department of Motor Vehicles (2006) 141 Cal.App.4th 1176, 1183.) ................
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