A Lummi Nation Police Department officer witnessed a motorist on the reservation driving at night with high beams and drifting across the center divider. He began following the vehicle and activated his emergency lights. After traveling a quarter mile the car pulled into a gas station located off the reservation. The police officer witnessed the driver, Loretta Eriksen, hop over the car’s center console and into the passenger’s seat. The officer detained Eriksen until a Whatcom County police deputy arrived, who arrested her for DUI.

Ms. Eriksen was convicted for DUI. The trial court said Lummi Nation’s inherent sovereign power authorizes tribal police to continue in “fresh pursuit” of offenders who drive off the reservation. The Supreme Court agreed to hear the case to resolve this issue of first impression.

The Supreme Court said that the Lummi Nation is a sovereign nation with inherent authority to enforce its laws and detain Indians or non-Indians who violate those laws. Courts have long recognized the right of law enforcement officers to cross jurisdictional lines when in hot pursuit of a violator. The court said this doctrine should apply to sovereign tribal nations as well. “The Lummi Nation Police Department has authority under the Lummi Nation’s sovereign authority and under the Washington Mutual Aid Peace Officers Powers Act of 1985, chapter 10.93 RCW, to enforce its laws by continuing the ‘fresh pursuit’ of suspects off the reservation and then detaining these suspects until authorities with jurisdiction arrive.”

Justice Richard Sanders wrote the unanimous opinion of the court.