The detectives were in an unmarked car driving 81st Street NE about 4:15 p.m., according to a police affidavit.
Near the intersection with 30th Drive NE, they saw a maroon Honda Civic suddenly stop and block a white Cadillac Seville.
Two men got out of the Honda and approached the Cadillac. One of them reportedly had a large knife concealed behind his arm.
The detectives got out of their car, yelling, "Police! Stop!" according to court papers.
At that point, one of the men from the Honda reportedly took a plastic baggie from his pocket and threw it into the Cadillac through a window. The Cadillac's driver then grabbed the baggie and threw it back outside.
The bag contained 5.49 grams of heroin.
Arrests ensued. Some of the people in the two cars apparently were acquainted.
Also recovered was the knife, the blade of which measured more than 10 inches.
The people in the Honda reportedly were trying to get the Cadillac back. It had been sold a couple of times, and they planned a carjacking to settle a related debt. Police have identified the car's registered owner.
Two of the men from the Honda were booked into the Snohomish County Jail for investigation of attempted first-degree robbery. One also is being investigated for possessing a controlled substance and resisting arrest.
Rikki King: 425-339-3449; firstname.lastname@example.org.
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