DWI / DUI Lawyers in Napa

California DUI breath-test results can be challenged on calibration, maintenance, operator error, mouth alcohol, and machine reliability — successful challenges have led to thousands of dismissals nationally.

California commercial driver's license (CDL) holders face stricter DUI rules — 0.04% BAC limit (half of regular drivers) plus career-ending consequences for ANY DUI in any vehicle.

California drugged driving (DUID) covers driving impaired by drugs — illegal, prescription, or even legal substances. Marijuana legalization complicates many California DUID cases.

California DUI with injury or death is a felony — typically charged as aggravated DUI, vehicular assault, or vehicular manslaughter. Prison time is mandatory in most cases.

California DUI expungement varies dramatically — some states allow sealing / expunging DUI convictions, many prohibit. Even where allowed, specific waiting periods + procedures apply.

California elevates DUI to felony for: 4th DUI within 10 years . Felony DUI sentence: 16 mo, 2, or 3 yrs in state prison; 4-10 yrs for injury.

A first-offense DUI in California carries real consequences — license suspension, fines, possibly jail, and an ignition interlock requirement. California's legal BAC limit is 0.08, and the offense is a misdemeanor — escalates to a felony if injury or 4+ priors in 10 years.

California DUI license suspension hearings (administrative) are SEPARATE from criminal proceedings — typically have 7-30 day deadline to request, lower burden of proof, but can save your license.

California drivers arrested for DUI in another state face dual-state consequences — must defend in arrest state, but home state shares info via Driver License Compact + may impose additional license penalties.

California implied-consent law: refusing a breath / blood test triggers automatic license suspension (1 year (1st refusal)) regardless of DUI outcome. Criminal refusal: Refusal sentence enhancement adds 48 hours mandatory jail to DUI sentence.

A second-offense DUI in California carries dramatically harsher penalties than a first — typical: 96 hours minimum, up to 1 year (5 years probation typical), 2 years suspension; iid for 1 year required. Lookback period: 10 years.