Practicing in the Appellate Courts is for the purpose of reviewing trial court judgments to correct of errors committed by the trial court, development of the law, achieve a uniform approach across courts, and the pursuit of justice, more generally. Appellate courts are not a forum to make a new case, but instead they determine if the rulings and judgment of the court below were made correctly.
As of December 3, 2009 Mattawa officially became a non-charter code city in Grant County, Washington, United States. The population was 2,609 at the 2000 census. An estimated population exists between 4500-6500 residents during peak fruit picking/agricultural season(s) and subsides by approximately 2000 residents during non-picking seasons.