Texas Man Arrested at Miami Airport with 75 Pounds of Marijuana in Luggage

23-year-old Harrison Tiernan caught with massive stash of cannabis while trying to board flight to London

Mar. 12, 2026 at 1:28am

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A 23-year-old Texas man named Harrison Tiernan was arrested at Miami International Airport after authorities discovered 65 vacuum-sealed packages containing 74.98 pounds of marijuana packed into the two suitcases he had checked for his flight to London. Tiernan acknowledged the bags were his, and he was charged with cannabis trafficking.

Why it matters

This case highlights the ongoing challenges airports and law enforcement face in preventing drug smuggling, especially as more states legalize marijuana. The large quantity of pot found in Tiernan's luggage suggests a sophisticated trafficking operation, raising concerns about the scale of illicit cannabis trade even as recreational use becomes more accepted.

The details

According to the arrest report, as Tiernan was preparing to board his British Airways flight to London Heathrow, U.S. Customs and Border Protection officers stopped him and searched his checked luggage. They found 65 vacuum-sealed packages containing "green leafy" substances that were later confirmed to be 74.98 pounds of marijuana. Tiernan acknowledged the bags were his.

  • On March 11, 2026, Tiernan was arrested at Miami International Airport.
  • Tiernan appeared in court on March 12, 2026 and was ordered held on a $20,000 bond.

The players

Harrison O'Neill Tiernan

A 23-year-old man from Austin, Texas who was arrested at Miami International Airport for allegedly trafficking 75 pounds of marijuana in his checked luggage.

U.S. Customs and Border Protection

The federal agency that discovered the large stash of marijuana in Tiernan's luggage during a security screening at the Miami airport.

Miami-Dade Sheriff's Office

The local law enforcement agency that took over the case from Homeland Security since the amount of marijuana did not meet federal thresholds.

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What’s next

Tiernan will have to wear a GPS monitor if he is released from custody on the $20,000 bond. The judge will also decide whether to allow him out on bail.

The takeaway

This incident demonstrates the continued prevalence of large-scale marijuana trafficking, even as attitudes and laws around cannabis evolve. It raises questions about airport security measures and the ability of authorities to curb the flow of illicit drugs across borders.