Yes, a DUI can trigger secondary inspection or even denial; it’s best to consult a lawyer and carry documents showing it’s a single, resolved offense.

A DUI can cause issues at the U.S. border, including secondary inspection; bring court documents and consult a lawyer before traveling.

With a DUI conviction, you may face challenges entering the U.S., potentially being deemed inadmissible and subject to secondary inspections or requiring a waiver.