A defense lawyer in Bahrain said two police officers were sentenced on Tuesday to 10 years in prison for the fatal beating of an antigovernment protester at the beginning of the country’s political crisis in 2011. The sentences are among the harshest against security forces for abuses in Bahrain’s unrest, which has claimed more than 60 lives. Dozens of activists and others have received longer sentences, including life in prison. The lawyer, Manar Maki, said the court found the two officers guilty of torturing a protester to death in February 2011, shortly after the Shiite majority began an uprising demanding greater political rights in the Sunni-ruled kingdom. Three other officers were acquitted in the case.