Letitia James, the state's first black attorney general and the first woman elected to the position, was honored at an inauguration ceremony in New York City.
Sunday's ceremonial swearing-in was at John Jay College of Criminal Justice in Manhattan. The Democrat was officially sworn in as the 67th Attorney General for New York last week.
Her predecessor, 74-year-old Barbara Underwood, was appointed in May when Eric Schneiderman resigned amid allegations he physically abused women. Schneiderman later apologized to his accusers; a special prosecutor declined to bring criminal charges.
Underwood did not seek election.