Criminal Citations:   - If a citation is received from a Mercer Island or Newcastle police officer or in the mail, a court appearance is mandatory.   - Failure to appear will result in a warrant being issued for the violator's arrest. Look for an arraignment date in the lower left-hand portion of the citation. If no date appears, the court will issue a summons to appear in court within two to three weeks.   Bench Warrants or Failure to Appear:   - Please contact the court for instructions.   Traffic Infractions:   - Individuals must respond within 30 days by either requesting a hearing or paying the fine in full.   - After 30 days, a $52 late penalty will be added. Unpaid balances will be sent to a collection agency and may result in a driver's license suspension.   Parking Tickets:   - A person must respond to a parking ticket within 15 days by requesting a hearing or paying the fine in full.   - After 30 days a $25 late penalty is added. Unpaid balances will be sent to a collection agency.   The driver is denied new license tabs until all fines are paid.