noun
prison affairs; correctional matters
Refers to administrative or operational matters related to prisons and corrections. Often appears in compound terms like 刑務所 (prison) or 刑務官 (prison officer).
刑務所の刑務官が受刑者の更生を支援する。
Prison officers at the correctional facility support the rehabilitation of inmates.
彼は刑務行政に詳しい。
He is knowledgeable about prison administration.
Compound of 刑 (punishment, penalty) and 務 (duty, affairs). The exact historical derivation is uncertain, but the combination naturally yields the meaning 'matters related to punishment'.