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Mercer Island DUI

Mercer Island Municipal Court hears all criminal misdemeanor cases and processes all non-criminal traffic citations and parking citations for violations occurring within the city limits of Mercer Island and Newcastle. Mercer Island Municipal Court has one courtroom presided over by the Honorable Wayne Stewart. 

DUI Procedure – Mercer Island Municipal Court

Following a DUI arrest in Mercer Island, you will receive a summons anywhere from one to five weeks following the date of your arrest.  If you have been previously arrested for a DUI, state law requires that you be booked on any subsequent DUI arrest. 

Arraignment.  In many if not most jurisdictions the arraignment and the first appearance are one in the same.  In these instances, in addition to determining what conditions should be imposed on the defendant, the court will enter a plea from the accused.  In almost every case the best advice is to plead not guilty to the allegation(s).  A guilty plea should only be entered at arraignment in very rare cases and hen only after consultation with an attorney.  Once the plea has been entered, conditions of release set by the judge. Arraignment in Mercer Island Municipal Court for a DUI is on Tuesday mornings at 9:00 am. The prosecutor typically does not appear at the arraignment but is always at all subsequent court appearances such as pre-trial hearings (conferences) held on Tuesday mornings at 10:00 am.

Conditions of Release for DUI Cases: In many courts, such as Mercer Island Municipal Court, if there are no aggravating circumstances or prior DUI convictions, most prosecutors will ask the judge to impose "standard DUI conditions" such a no driving without license and insurance, commit no criminal law violations, and do not refuse a breath test. However, if there are aggravating circumstances such as an accident, a minor in the vehicle, a high breath test or a prior DUI conviction, prosecutors routinely request additional conditions such as bail, no driving without an ignition interlock on the vehicle, and in some situations, have an alcohol detection device installed in their home and be on house arrest. It is not uncommon for judges to impose some of these restrictions, even on first offense DUIs.

It may also be important to have bail money available or a bail bondsman at the ready. Pewitt Law has preferred bail bond agents that do an excellent job for our clients. The good news is that many bail bond companies are at the first appearance ready to help you if the court imposes bail - however, it is best to be prepared in advance.

Because the imposition of bail and conditions such as installation of ignition interlock, SCRAM bracelets and/or pretrial home detention are common, those arrested for DUI in Mercer Island should be consulting with an experienced Mercer Island DUI Lawyer as soon as possible. Attorneys who practice DUI defense in Mercer Island Municipal Court know that it is essential to anticipate what types of conditions of release the Prosecutor may seek and be prepared to address the judge's concerns. Anticipating and addressing the court's concerns often can be the difference between imposition of large bail and/or home detention and a release on your personal recognizance (or your promise to appear).

DUI Pretrial Hearings (PTR)

At the pretrial hearing, your Mercer Island DUI attorney will negotiate with the prosecutor. DUI negotiations can mean anything from a reduction in the charge, to a dismissal, to the prosecutor saying that no offer will be made. DUI reductions are typically made because of both evidential problems (i.e. the prosecutor may have a tough time proving the case) and equitable reasons (person with no criminal history and a low breath test).  Most cases have several PTR's before they are resolved or set for trial. Pre-trial hearings generally occur 4-5 weeks apart. If a good offer is presented by the Deputy Prosecuting Attorney, the case can be disposed of by a plea deal (plea bargain) at a PTR. During this process, your defense attorney will be investigating your case and obtaining police reports, medical records, interviews from witnesses, victims, experts and law enforcement as well as any other evidence related to your case.

It is not uncommon for there to be more than one DUI pretrial hearing at Mercer Island Municipal Court. This occurs when the attorney asks for a continuance of the hearing. For a continuance to occur, you (the defendant) must waive your right to a trial within 90 days of your first court appearance.  If the case is not resolved after a few pre-trial hearings, the court will often pressure the parties to conclude the case with a plea deal or go to trial. If your case is not resolved at the pretrial, then it can be set on for a jury trial. Often there is a pre-trial motion hearing before the DUI trial.

Pretrial Motions: A motion hearing is often a testimonial hearing. At a motion hearing the facts and the legal issues are presented for purposes of determining their admissibility at trial. This is a good time to hear the evidence that the arresting police officers or any other witnesses will be offering. DUI substantive legal motions at Mercer Island Municipal Court are set at the pretrial hearing stage. There are numerous pretrial motions that can have a significant impact on your defense – or even result in the dismissal of your case. A few common ones include motions to challenge probable cause (PC) for the stop or arrest, to challenge admissibility of statements made by the police, witnesses or defendant, motions to compel or limit discovery and motions to dismissed based on insufficient evidence. Pretrial motions require extensive legal briefing and strategic planning to be successful.

Readiness Hearings: When a case is set for trial in Mercer Island Municipal Court, the defendant is provided with both a trial date and a readiness date. The readiness date is normally set 4-12 days prior to the actual trial date. At the readiness hearing, parties will either confirm the pre-set trial date, resolve the case by way of an agreed disposition, continue the trial date for a variety of reasons, or set a new date for disposition of some other motion.

DUI Trial at Mercer Island Municipal Court You may choose to go to trial in the event the prosecution has not offered an agreeable plea deal, or if a conviction would be unacceptable or especially damaging to your career or personal life.  Your Mercer Island DUI case will be set for trial for a specific date. You will need to show up on this date. Once you start your Mercer Island DUI trial, if there is a breath or blood test in your case and if motions have not been heard, it is not uncommon for these trials to take 2-3 days once you begin. If there is no breath or blood test in your Mercer Island DUI and limited motions, then trial will typically take 1-2 days. You will need to be present for the entirety of the trial.

Jury trials typically proceed in the following order:

  1. Legal motion
  2. Jury selection or "voir dire"
  3. Opening statements
  4. The prosecution's witnesses
  5. Defense witnesses (if any)
  6. Closing arguments.

Mercer Island Municipal Court is located in City Hall at:
9611 SE 36th Street
Mercer Island, WA 98040
Phone: 206.275.7604
Fax: 206.275.7980
Driving Directions:
I-90 Eastbound (from Seattle): take Exit #8, East Mercer Way. At stop light take a right and another immediate right onto SE 36th Street (this road parallels the south side of the freeway). The Municipal Court is located in City Hall, the third building on the left.
I-90 Westbound (from Bellevue): take Exit #8, East Mercer Way. At the stop sign turn left, this road carries you over the freeway. Get in the right hand lane and turn right onto SE 36th Street (this road parallels the south side of the freeway). The Municipal Court is located in City Hall, the third building on the left.


If you have questions about your Mercer Island Municipal Court DUI charge or need help with your case, please contact Pewitt Law, PLLC.   Attorney Sheri Pewitt, is a criminal defense attorney with an emphasis in DUI and criminal traffic law.

Amendment IV

The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.

Amendment VI

In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the state and district wherein the crime shall have been committed, which district shall have been previously ascertained by law, and to be informed of the nature and cause of the accusation; to be confronted with the witnesses against him; to have compulsory process for obtaining witnesses in his favor, and to have the assistance of counsel for his defense.