The part that trips people up most is that a preliminary hearing is not a trial, and many DUI or OWI cases never reach one at all. It is an early court proceeding where a judge decides whether there is enough evidence to keep a criminal case moving forward on an indictable offense. The judge is not deciding guilt beyond a reasonable doubt. The question is only whether probable cause exists.

In Iowa, that detail matters because many first-offense OWI cases are misdemeanors, while a preliminary hearing is generally tied to indictable offenses. Under Iowa Rule of Criminal Procedure 2.5, a preliminary hearing is usually set within 10 days of the initial appearance if the person is in custody, or within 20 days if not. It can also be waived, and it may not happen if the prosecutor files a trial information first.

For anyone hurt in a crash, this hearing can matter even though it belongs to the criminal case, not the injury case. Testimony, police reports, and early statements can lock people into a version of events that later affects liability, witness credibility, or settlement pressure.

Do not assume a criminal hearing protects your civil rights. A criminal case can stall, get reduced, or end without answering who pays for medical bills. In Iowa, the 2-year statute of limitations for most personal injury claims still runs separately.