According to the Seattle Weekly article below, public defenders in Seattle will start filing jury declarations. These declarations will document the racial makeup of each group of jury pools during trial proceedings at King County Superior Court. These declarations will also be put into the court record.
At present, the court does not track jury demographics. The local public defender's office has started this policy in order to document whether juries are truly a cross-section of the Seattle community.
Seattle Weekly: Are People of Color Underrepresented in Our Juries?