警けい保ほ局きょくMeanings1nounHome Ministry Police Affairs Bureau (1876-1947)historical termHistorical term for a bureau within the pre-war Home Ministry that oversaw police administration.警けい保ほ局きょくは戦せん前ぜんの内ない務む省しょうに置おかれていた機き関かんだ。The Police Affairs Bureau was an agency within the pre-war Home Ministry.