Tim Thayer, wearing a black bulletproof vest and carrying a gun, starts the four 350-horsepower engines on the 18,000-pound U.S. Customs and Border Protection boat in the Detroit River. Thayer, a marine interdiction agent, is part of a team that monitors the waterways along the Canada-U.S. border in this region, specifically assigned to the Detroit sector covering Michigan, Ohio, Indiana, and Illinois. The border in this area, stretching 1,388 kilometers, is entirely water-based, creating a unique challenge due to the proximity of Windsor, Ontario, south of Detroit, connected by bridges and a tunnel with millions crossing annually.
Thayer keeps a watchful eye on the Windsor shoreline during a patrol, scanning for any irregular activities such as people, narcotics, and firearms being smuggled between the two countries. The Detroit River historically served as a smuggling route during the Prohibition era, with the Windsor-Detroit corridor being a significant entry point for illegal alcohol. Today, while smuggling activities have decreased, the high number of recreational boaters poses challenges for law enforcement.
U.S. President Donald Trump’s allegations of Canada allowing drug and human traffickers, especially fentanyl, to enter the U.S. led to the imposition of tariffs in 2025, which were later overturned by the Supreme Court. Despite Trump’s portrayal of a porous border, data shows a more complex reality. In 2025, U.S. border officials in the Detroit sector seized over 4,200 kilograms of illegal drugs, including nearly 15 kilograms of fentanyl. However, the direction of drug trafficking is not explicitly stated in the statistics.
The flow of drugs and firearms between the U.S. and Canada primarily moves northward, with a significant number of guns recovered in crimes in Ontario traced back to the U.S. According to experts, Canada faces challenges in border security due to staffing and resource limitations. While Trump’s concerns about drug trafficking from Canada are contested, U.S. and Canadian border officials maintain strong partnerships to address cross-border issues effectively.
The ongoing political tensions have not affected the collaborative efforts between U.S. and Canadian border agencies, as emphasized by Tim Balkus, the patrol agent in charge of the Detroit sector. As Thayer observes an RCMP boat passing by with the Gordie Howe bridge in the background, it symbolizes the complexities of the current relationship between the two nations.