Wash. Rev. Code § 10.43.020
When the defendant has been convicted or acquitted upon an indictment or information of an offense consisting of different degrees, the conviction or acquittal shall be a bar to another indictment or information for the offense charged in the former, or for any lower degree of that offense, or for an offense necessarily included therein.
[ 1891 c 28 s 74; Code 1881 s 1096; 1873 p 238 s 257; 1854 p 120 s 121; RRS s 2166.]
Bar as to prosecution for same crime in another degree, or attempt: RCW 10.43.050.