Navigating California DUI Prosecutions: Two Parallel Proceedings
When arrested for driving under the influence (DUI) in California, the accused faces two independent legal battles: the criminal prosecution in California Superior Court under Vehicle Code §§ 23152(a)/(b) and the Administrative Per Se (APS) proceeding conducted by the California Department of Motor Vehicles (DMV).
1. Stopping the Automatic 30-Day Suspension: The 10-Day DMV Rule
From the moment of arrest, the driver has exactly 10 calendar days to contact the DMV Driver Safety Branch and request a formal administrative hearing and stay of suspension. Failing to request this hearing within 10 days results in an automatic forfeiture of driving privileges. A timely request preserves the driver's full license pending the evidentiary hearing outcome.
2. California Code of Regulations Title 17 Compliance
Title 17 of the California Code of Regulations mandates strict scientific and procedural standards for evidentiary breath and blood tests:
- Continuous 15-Minute Observation: The administering officer must continuously observe the subject for at least 15 uninterrupted minutes prior to breath testing to verify no burping, regurgitation, or ingestion occurred, which could introduce mouth alcohol and artificially inflate BAC readings.
- Machine Maintenance & Calibration Logs: Breathalyzer devices (such as the Intoximeter EC/IR II) must undergo accuracy checks every 10 days or 150 uses. Missing calibration logs can invalidate test results.
- Blood Sample Preservation: Blood draws must use non-alcoholic swabs and contain specified ratios of sodium fluoride (preservative) and potassium oxalate (anticoagulant) to prevent natural blood fermentation.
3. Independent Blood Split Testing
Under California law, a portion of the drawn blood sample must be preserved for independent defense testing. Defense counsel routinely files a motion for a blood split order, sending the sample to an accredited private toxicology laboratory to verify gas chromatography accuracy and test for preservative levels.