CA1: Lobstering is a closely-regulated industry

Lobstering is a closely regulated industry, and GPS tracking of lobster boats by the State of Maine is reasonable under the Fourth Amendment. Thompson v. Wilson, 2025 U.S. App. LEXIS 30135 (1st Cir. Nov. 18, 2025) (appellant first conceded that it was a closely regulated industry, and then tried to back out of it, but to no avail):

According to New England legend, Maine law once restricted the amount of lobster that could be fed to prisoners before it was considered cruel and unusual punishment. Our Nation’s perspective on these succulent crustaceans has certainly changed since those early colonial days, but laws related to the American Lobster remain on Maine’s books today. Such is the topic of the present appeal: a Maine Department of Marine Resources (“MDMR”) Rule that requires all Maine lobstermen who hold federal lobster fishing permits to install an electronic tracking device on their vessels and share their location data whenever those vessels are in the water.

After the MDMR Rule went into effect, appellant Frank Thompson and a group of Maine lobstermen filed suit in the United States District Court for the District of Maine seeking to enjoin the MDMR Rule and have it declared unconstitutional as per the Fourth Amendment’s unreasonable searches and seizures prohibition. Following a motion to dismiss from the Commissioner of the MDMR (whom we will refer to in this opinion generally as “Maine”), the district court held that the lobstermen had failed to state a claim for which relief could be granted. However, before dismissing Thompson and the lobstermen’s claim, the district court encouraged them to appeal their Fourth Amendment challenge to our court for an authoritative ruling. They did, and we respond to this request head on. In doing so, we affirm the district court’s dismissal.

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