FBI arrests Bernard Madoff's brother in New York City NEW YORK - The FBI has taken Bernard Madoff's brother, Peter, into custody as a federal judge in New York prepares to accept his plea to criminal charges. FBI spokesman J. Peter Donald says Madoff was arrested at his lawyer's Manhattan office around 7 a.m. EDT Friday. Madoff is scheduled to enter a plea to conspiracy and falsifying records. The government told a judge that he has agreed to serve 10 years in prison and relinquish his fortune. The plea by the 66-year-old chief compliance officer at the Madoff investment business comes three years after his brother admitted to mammoth fraud. Bernard Madoff is serving a 150-year prison term. He has insisted he carried out his fraud alone for decades, cheating thousands of people of billions of dollars.