Wash. R. Evid. 702
As amended throough October 10, 2024
If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise.
Wash. R. Evid. ER 702
Comment 702
[Deleted effective September 1, 2006.]