also: けんびいし · けいびいし
police and judicial chief (Heian and Kamakura periods)
Historical term for a high-ranking official who combined police, judicial, and military duties in the Heian and Kamakura periods. Often translated as 'imperial police commissioner' or 'chief of the Kebiishi office'.
In the Heian period, the Kebiishi were responsible for maintaining public order in the capital.
検非違使庁は、警察と裁判所の両方の機能を持っていた。
The Kebiishi office had the functions of both a police force and a court.
Alternate reading; けびいし is the more common historical reading.
Kana spelling is sometimes used in modern explanatory texts for readability.