The judgment of the Grand Chamber of the Court of Justice of the European Union (CJEU) announced on November 19, 2019 in response to a preliminary reference from the Polish Supreme Court is of fundamental importance for the independence of courts and judges in EU countries, establishing a pillar on which subsequent CJEU decisions have been based. The CJEU concluded that a national court is not an independent and impartial tribunal within the meaning of the European Union (EU) law where the objective circumstances in which that court was formed, its characteristics, and the means by which its members have been appointed are capable of giving rise to legitimate doubts, in the minds of subjects of the law, as to the imperviousness of that court to external interference. In particular, a court may cease to be seen as independent or impartial when it appears to be under the direct or indirect influence of the legislature and/or the executive, or where doubts emerge about their neutrality with respect to the interests before them. Such circumstances threaten the trust that justice in a democratic society must inspire in subjects of the law.