A California DUI arrest triggers two completely independent legal proceedings. Understanding both is essential for protecting your driving privileges and your freedom.
Many people don't realize that a DUI arrest in California creates two separate cases: an administrative action through the DMV and a criminal case in court. These proceedings operate independently, with different rules, different standards, and different consequences.
When you're arrested for DUI in California, your case splits into two parallel tracks that don't directly affect each other:
Focuses solely on your driving privileges. Can result in license suspension regardless of criminal case outcome.
Determines guilt or innocence for DUI charges. Can result in jail, fines, probation, and additional license consequences.
You have only 10 days from your arrest to request a DMV hearing. If you don't, your license will be automatically suspended 30 days after arrest—even if you're never convicted in criminal court.
The DMV hearing is an administrative proceeding, not a criminal trial. It has different rules and a lower burden of proof.
The hearing officer will determine:
Did the officer have reasonable cause to believe you were driving under the influence?
Were you lawfully arrested?
Was your BAC 0.08% or higher (or did you refuse testing)?
| Factor | DMV Hearing | Criminal Court |
|---|---|---|
| Burden of Proof | Preponderance of evidence | Beyond reasonable doubt |
| Decision Maker | DMV hearing officer | Judge or jury |
| Right to Jury | No | Yes |
| Evidence Rules | Relaxed (hearsay allowed) | Strict evidence rules |
| Consequence | License suspension only | Jail, fines, probation, license |
Must be made within 10 days of arrest. Call DMV Driver Safety at (800) 777-0133.
Requesting a hearing typically delays suspension until the hearing decision.
Obtain police reports, calibration records, and other evidence before hearing.
Usually conducted by phone. Present evidence, cross-examine witnesses.
Hearing officer issues written decision. Can be appealed if unfavorable.
The criminal case is handled by the District Attorney's office and follows standard criminal court procedures with constitutional protections.
To convict you of DUI, the prosecution must prove beyond a reasonable doubt that:
While independent, the two proceedings can affect each other in practical ways:
You can win at the DMV (keep your license) but still be convicted in criminal court. The higher burden of proof at DMV doesn't protect you from criminal conviction.
You can be acquitted in criminal court but still lose your license through the DMV. The lower burden of proof at DMV makes this possible.
Evidence obtained for one proceeding can be used in the other. The DMV hearing can serve as a "discovery" opportunity—testimony given by officers can later be used to impeach them in criminal court if their story changes.
| Situation | DMV Suspension | Court Suspension |
|---|---|---|
| First DUI (BAC ≥ 0.08%) | 4 months | 6 months |
| First DUI Refusal | 1 year | 6 months (if convicted) |
| Second DUI | 1 year | 2 years |
| Third DUI | 1 year | 3 years (revocation) |
Note: Suspensions may run concurrently or consecutively depending on timing. IID installation can allow earlier restricted driving.
For comprehensive information about defending against DUI charges in both proceedings, visit our California DUI Defense page.
Navigate both proceedings with experienced guidance.
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