NEW POLICY OF PENITENTIARY ADMINISTRATION REFLECTED ON ARCHITECTURAL PLANNING OF PRISONS AROUND 1930

Since the Meiji Restoration, penitentiary administrative system and design of penal buildings in Japan have been developed with reference to examples from Western countries as part an institutional modernization effort. The policy has discipline prisoners based on benevolence humanism, not punish. It was around 1900 that a unified jurisdiction for all prisons established by Ministry Justice. then, humanitarian principles had set forth since early era, were upgraded under organization Justice, following changes treatment management inmates. In 1922, “The Revised Penal Code” changed word ‘prison’ "kangoku" "keimusyo", clear purpose moving "retributionism", which punished criminals, "educationism", viewed institutions rehabilitation prisoners. This paper considers reform movement 1920, well structural restoration works undertaken after Great Kanto Earthquake (1923). period represents important turning point improvement pre-World War II Japan, demonstrating identifiable new administration. is reflected architectural planning prisons, expressed designs utilizing characteristics reinforced concrete, novel technology at time.