4. What if my prior wasn't in Sonoma County?
Sometimes, prior convictions from other jurisdictions, other California counties and other states, can be missed by the Sonoma County courts, and sometimes by the Santa Rosa DMV. Although this doesn't happen often and is not a development to plan for, nonetheless it does happen.
Moreover, if a prior conviction was recent and an accused is also in violation of probation, but the probation is in another jurisdiction such as Napa or Marin, or another state, then it is unlikely that an additional violation of probation charge will appear on the Sonoma County complaint following the latest DUI arrest, meaning that jail exposure is less in Santa Rosa, but a separate case may arise in the jurisdiction where the prior conviction occurred. Consult with a DUI lawyer in Sonoma County and any other applicable jurisdiction about your specific cases.