Authorizes tribal and Indian nation law enforcement officers to act as Washington state peace officers.

Provides that, for purposes of civil liability, a tribal officer exercising general authority law enforcement power granted under this act shall be considered an employee of the jurisdiction that commissioned the officer while he or she is exercising the power. The jurisdiction that commissioned the officer shall be civilly liable for any tortious acts or omissions committed by a tribal law enforcement officer while exercising the general authority law enforcement power granted under this act to the same extent as if the tribal law enforcement officer was an employee of the jurisdiction that commissioned the officer.