Former U.S. Sen. Scott Brown's half-brother has pleaded guilty to impersonating a federal law enforcement officer.
Authorities say 47-year-old Bruce Brown stopped boaters off the Connecticut coast after commandeering one owner's boat and declared it a U.S. Coast Guard vessel.
Brown pleaded guilty Monday in federal court in Bridgeport to two counts of impersonating a law enforcement officer and one count of falsifying a military discharge certificate.
Brown was originally charged by state police after the incident last August.
A message left with his attorney was not immediately returned.
Scott Brown has said he was estranged from Bruce Brown, who has a different mother. The Republican lost the Massachusetts seat in 2012 to Democrat Elizabeth Warren.
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