Tim Thayer, equipped in a black bulletproof vest and a gun holstered to his side, smoothly engages the throttles of four 350-horsepower engines. This action brings the 18,000-pound U.S. Customs and Border Protection boat to life on the Detroit River. Thayer serves as a marine interdiction agent, part of a team responsible for patrolling the water boundaries between Canada and the U.S. in this region.
His jurisdiction covers the Detroit sector, encompassing Michigan, Ohio, Indiana, and Illinois. The geographical layout in this area presents a unique challenge as the Canada-U.S. border spans 1,388 kilometers entirely over water. Notably, Windsor, Ont., lies to the south of Detroit, separated by the river and linked by two bridges and a tunnel, facilitating around seven million annual crossings.
During a sunny Wednesday afternoon, Thayer gazes southward towards the Windsor shoreline, vigilantly scanning for any unusual activities. He highlights the prevalence of people, drugs, and firearms crossing between the U.S. and Canada during enforcement patrols on the Detroit River.
The Detroit-Windsor corridor historically served as a key route for smugglers transporting alcohol into the U.S. illicitly during the Prohibition era. While illicit activities on the Detroit River have diminished compared to the past, the high volume of recreational boaters poses a challenge for law enforcement efforts.
In 2025, U.S. President Donald Trump accused Canada of inadequately preventing drug trafficking, particularly of substances like fentanyl and human traffickers, into the U.S. He imposed tariffs on various Canadian goods under emergency powers, which were later overturned by the U.S. Supreme Court. Despite Trump’s portrayal of a porous border, the actual situation is more complex.
In the Detroit sector in 2025, U.S. border officials seized over 4,200 kilograms of illegal drugs, including nearly 15 kilograms of fentanyl. However, statistics do not specify the direction of drug trafficking. The movement of guns northward has also been documented in recent reports.
While the flow of drugs and weapons predominantly moves from the U.S. into Canada, the country still poses security challenges to the U.S., focusing on insufficient border staffing and the need for enhanced training and resources. The relationship between U.S. and Canadian border agencies remains strong despite political tensions between the two nations.
Thayer observes as an RCMP boat passes by, with the Gordie Howe bridge symbolizing the current dynamic of both solidarity and strain in the relationship between the U.S. and Canada.