noun
chief public prosecutor
Official title for the head of a district public prosecutors office in Japan.
彼は東京地検の検事正に任命された。
He was appointed chief public prosecutor of the Tokyo District Public Prosecutors Office.
検事 is a general public prosecutor, while 検事正 is the specific title for the chief of a district office.
Compound of 検事 (public prosecutor) and 正 (chief, head).