The Supreme Court left standing a Maine GPS boat-tracking mandate after declining a lobsterman's privacy challenge, a setback critics warn could weaken Fourth Amendment protections far beyond the water.

Frank Thompson was out hauling traps earlier this month when his son texted him the news: the Supreme Court would not take his case. The fifth-generation lobsterman from Vinalhaven, a small island off the Maine coast, had challenged a state rule forcing a tracking device onto federally licensed lobster boats. The high court left a lower-court ruling intact on Monday, and the “black box” stays aboard.

Fox News Digital reported that Thompson and four fellow lobstermen sued after Maine’s Department of Marine Resources put the mandate in place in 2023. Their argument was straightforward. The government installed continuous location tracking without a warrant, and that crossed the Fourth Amendment line.

A federal judge dismissed the suit. The U.S. Court of Appeals for the First Circuit upheld that dismissal, holding that lobstering is a “closely regulated” industry and that the tracking requirement therefore did not violate the Constitution. The Supreme Court’s refusal to hear the petition leaves that reasoning in force.

Thompson is not quitting. “I just told myself, I said, ‘Well, it ain't over yet,’” he said after the decision.

"This is totally against [the Fourth Amendment], and somebody's got to hear it one way or another."

That is how Thompson framed the fight. His attorney, Matthew Gilliam of the Pacific Legal Foundation, put it in legal terms. The state required the device as a condition of earning a living and keeping a lobster license. Gilliam called that a forced trespass.

"That forced trespass was a violation of the Fourth Amendment because it's an unreasonable search and seizure."

The boxes collect a boat’s location once every minute while it is moving and every six hours while it sits docked. Officials say the data helps protect endangered North Atlantic right whales, monitor lobster stocks, and sustain the fishery. Thompson hears a different message.

Officials call it conservation; Thompson calls it a 24/7 ankle bracelet

Maine DMR Commissioner Carl Wilson stood by the rule the same day the Court declined the case.

"DMR continues to believe this data collection requirement is critically important to the long-term sustainability of the lobster fishery and resource."

The Conservation Law Foundation, which backed the tracking rule at the First Circuit, praised the outcome. Associate Attorney Sarah Shahabi said in a press release that the decision was “a valuable step toward appropriately managing this iconic species.” The group had filed a separate brief supporting the mandate on appeal.

Thompson rejects the whale rationale as cover. “They're bringing it up because it's for the whales,” he said. Then he added: “Well, the government's lying through their teeth like they always do, and I'm not a criminal.”

He compared the tracker to a government-issued ankle bracelet that runs around the clock. It gives him “a creepy feeling,” he said. Even travel back to the mainland does not shut the data collection off. In his view, the independence that defined the work is what the rule takes first.

“Freedom is gone. What else can they do to us?” he asked.

Farm groups saw a wider Fourth Amendment risk

The American Farm Bureau Federation filed an amicus brief supporting Thompson’s Supreme Court appeal. The group warned that the lower court’s reasoning could weaken Fourth Amendment protections for farmers, ranchers, and others who work in regulated industries. If lobster boats can be tracked continuously because the trade is “closely regulated,” the same logic can travel inland.

Thompson made that point in plain language. Cell phones already make people findable, he said. Forcing a black box onto a tractor so the government can count days in the field is another matter. “It's just, the independence is gone.”

That is why groups outside the fishery paid attention. A ruling that treats warrantless, continuous location tracking as routine for licensed work does not stay on the water. It becomes a template. High-court refusals to revisit lower-court expansions of government power have shaped other disputes this term, including when the Supreme Court leaves intact a Fifth Circuit ruling rather than reopen a constitutional fight.

Generations on the water, and a license that now comes with a tracker

Thompson co-owns Fox Island Lobster Company with his wife and two sons. Fishing, he says, has been in his blood since his first boat ride two days after he was born. For decades he has run from Vinalhaven into deeper water to set traps and haul catch. He describes landing lobsters as feeling like opening a present at Christmas. “It's just a way of life.”

“We're just out there making a living and we're taking good care of the resource,” he said. “You can't believe the steps that we've done to take care of it and we don't get credit for nothing.”

The Atlantic States Marine Fisheries Commission directed Maine’s DMR to implement the tracking rule. Compliance is tied to the license. No box, no lawful living from the boat. Gilliam said lobstermen still have Fourth Amendment protections and that the legal work continues against government overreach.

"Lobstermen and others have Fourth Amendment protections and we'll continue fighting against government overreach."

Thompson’s own summary is shorter. “I'm fighting for everybody, not just myself. I'm just fighting for freedom for everybody.” He also warned that stacked rules and regulations are “taking away a lifestyle of generations of freedom,” and that continued pressure could “ruin us.”

Court watchers have seen this pattern in other arenas where a single denial leaves a contested lower-court framework in place. Parallel fights over state power and emergency appeals have produced the same kind of sudden stop, including cases where the Supreme Court again bars a Missouri map or where a federal judge moves ahead after the Court declines emergency relief.

What the “closely regulated” label now buys the state

The First Circuit’s key move was categorical. Because commercial lobstering is heavily regulated, the court treated the GPS mandate as falling inside an exception to ordinary Fourth Amendment warrant rules. The Supreme Court chose not to review that holding. The practical result is simple: Maine may require the devices, collect minute-by-minute movement data at sea, and keep receiving docked pings every six hours, all without a warrant tied to individual suspicion.

State officials and conservation advocates call that sustainability. Thompson calls it surveillance sold as virtue. He notes the industry’s own conservation steps and says the public rarely hears them before the next rule arrives. “People just don't think before they react to it.”

The mandate’s defenders won the last round in court. They did not end the argument over what a free people must surrender to keep a license to work. Similar inflection points appear whenever the justices decline a fast-moving dispute and leave a lower framework untouched, as when the Supreme Court rejects a push on mail ballots or blocks an appeals-court ruling on ad rates and the prior rule remains the law on the ground.

Thompson is still on the water. The box is still on the boat. The Court’s door closed on Monday; his, he says, has not.

When government can bolt a tracker to honest work and call it conservation, the warrant requirement becomes optional for anyone whose trade a bureaucracy labels “closely regulated.” That is the precedent Maine’s lobstermen were told to live with, and the reason this fight was never only about lobsters.