How a lobsterman's privacy fight reached SCOTUS — and could ripple far beyond the water: 'Ain't over yet'

Supreme Court Rejects Lobsterman’s Challenge to Maine GPS‑Tracking Mandate

In a decision that leaves Maine’s lobster boats under federal surveillance, the U.S. Supreme Court declined to review a challenge to a state‑mandated GPS‑tracking system for lobster vessels. The ruling preserves a First Circuit Court decision that the “black‑box” tracking does not violate the Fourth Amendment, allowing the Maine Department of Marine Resources (DMR) to keep the requirement in place.

The mandate, adopted in 2023 at the direction of the Atlantic States Marine Fisheries Commission, requires every federally licensed lobster boat to carry a small electronic device that records its location once per minute while underway and every six hours while docked. The devices also log the vessel’s position during personal trips, a fact that has spurred concerns about privacy.

“Freedom is gone. What else can they do to us?” said Frank Thompson, a fifth‑generation lobsterman from Vinalhaven, Maine. Thompson, who co‑owns the Fox Island Lobster Company with his wife and two sons, described the black box as a “24‑hour ankle bracelet.” “This black box that they're putting aboard the boat is not legal, in my mind, and I'm not a criminal,” he told reporters earlier this month.

Thompson’s fight began shortly after the tracking requirement went into effect. He and four other lobstermen filed a federal lawsuit claiming the system constituted warrantless surveillance. A federal judge dismissed the case, and the U.S. Court of Appeals for the First Circuit upheld the dismissal, finding that the tracking requirement falls within the exception granted to closely regulated industries. The First Circuit ruled that the GPS tracking did not violate the Fourth Amendment.

The Supreme Court’s refusal to hear the appeal keeps the First Circuit’s ruling in force. A statement released by Maine DMR on Monday reaffirmed the agency’s commitment to the mandate, citing its importance for protecting endangered North Atlantic right whales, monitoring lobster populations, and sustaining the industry. “DMR continues to believe this data collection requirement is critically important to the long‑term sustainability of the lobster fishery and resource,” Commissioner Carl Wilson wrote.

The legal battle has drawn interest from groups outside the lobster industry. The American Farm Bureau Federation, which represents farmers and ranchers, filed an amicus brief supporting Thompson’s challenge. The brief warned that the First Circuit’s reasoning could weaken Fourth Amendment protections for other regulated industries. In contrast, the Conservation Law Foundation, which filed a separate brief in favor of the tracking requirement, praised the Court’s decision as a step toward responsibly managing an iconic species.

“Lobstermen and others have Fourth Amendment protections and we’ll continue fighting against government overreach,” said Matthew Gilliam, Thompson’s attorney with Pacific Legal Foundation. “We’re not asking for a blanket exemption. We’re asking for a clear line between legitimate regulation and unwarranted surveillance.”

Thompson said the GPS requirement threatens more than just his livelihood. “Fishing's been in my blood, and I always want to be on the water. It’s something that I couldn't explain to you. The feeling that you get out fishing and stuff,” he said, reflecting on how his first boat ride came two days after his birth. “It’s just a way of life.”

He compared the thrill of hauling a trap full of lobsters to “opening a present at Christmas time.” “We’re just out there making a living and we're taking good care of the resource,” Thompson added. “You can’t believe the steps that we've done to take care of it and we don't get credit for nothing.”

Thompson warned that if the tracking requirement spreads to other industries, it could erode the independence of many small‑scale operators. “Everybody's got cell phones, they can track us if they want to. But put a black box on a tractor, seeing how many days he's out in the field or whatever, it's just, the independence is gone,” he said.

The Supreme Court’s decision leaves the GPS mandate intact for now, but Thompson said he will continue to pursue legal remedies. “I'm fighting for everybody, not just myself,” he told reporters. “I'm