The first hint of trouble came in November, when police pulled over a northern Minnesota woman suspected of speeding on Interstate 94 in West Fargo, N.D. While the car was stopped, a police K-9 named Disco hit on something more — packages containing 286 pounds of marijuana with a street value of more than $1.3 million.
A month later, a county sheriff's deputy made a traffic stop of a minivan driven by a St. Paul man just east of Jamestown, N.D., and discovered nearly 200 pounds of pot.
Then came the stunner. In late January, a routine stop of a truck for a minor driving infraction along I-94 in eastern North Dakota turned out to be anything but. While searching the back of the vehicle, police found 476 pounds of marijuana worth more than $3 million.
The busts, surprising in their worth, have some authorities wondering whether the I-94 corridor that slices through the heart of both states and Wisconsin is becoming a major pipeline for marijuana and other drugs.
"That's not the direction we want to go," said Wisconsin State Patrol Lt. Chris Jushka. "We're definitely seeing more drugs in the state."
In 2017, Minnesota troopers seized more than 2,600 pounds of marijuana — more than six times what they found the year before. Across the border, North Dakota troopers confiscated 300 pounds in 2017, up 88 percent from 2016. One-third of North Dakota's drug arrests were made along I-94, authorities say. And in Wisconsin, troopers saw a 20 percent increase in drug arrests, mostly marijuana-related, from 2016 to 2017.
To be sure, the trafficking shows little indication of slowing in 2018.
Several days after North Dakota authorities made the $3 million-plus bust, Minnesota state troopers pulled over a motorist along I-94 in Otter Tail County, and a drug-sniffing dog discovered 200 pounds of marijuana valued at more than $600,000.