
According to the new Washington Supreme Court General Rule 37:
Upon objection to the exercise of a peremptory challenge pursuant to this rule, the party exercising the peremptory challenge shall articulate the reasons that the peremptory challenge has been exercised.
(e) Determination. The court shall then evaluate the reasons given to justify the peremptory challenge in light of the totality of circumstances. If the court determines that an objective observer could view race or ethnicity as a factor in the use of the peremptory challenge, then the peremptory challenge shall be denied. The court need not find purposeful discrimination to deny the peremptory challenge. The court should explain Its ruling on the record.
(f) Nature of Observer. For purposes of this rule, an objective observer is aware that implicit, institutional, and unconscious biases, in addition to purposeful discrimination, have resulted in the unfair exclusion of potential jurors in Washington State.
The Washington ACLU which backed the new rule states that "not only is intentional race discrimination outlawed, but also peremptory challenges based on 'implicit, institutional, and unconscious' race and ethnic biases."
The WA SCT Rule, which goes in to effect at the end of the month, is available here. The report discussing the rule is available here.