The Accountability Gap in Sub-Sovereign ESG Finance: A Case Study of Police Administration Oversight in Chiba Prefecture, Japan

This paper examines a critical vulnerability in the methodology of sub-sovereign ESG (Environmental, Social, and Governance) ratings, utilizing Chiba Prefecture, Japan, as a primary case study. While global ESG frameworks increasingly evaluate local government bonds, rating agencies predominantly rely on macro-level socioeconomic indicators and overarching policy frameworks, creating a significant "measurement gap." We demonstrate how this macro-dependence obscures micro-level governance failures—specifically, the indefinite suspension of complaint processing and the systemic non-creation of official records within police administration. By applying an axiomatic approach grounded in administrative law and corporate governance principles, this study empirically documents the existence of a structural "Accountability Gap" at the operational entry point. The findings highlight the critical need for institutional investors and ESG rating agencies to discount the reliability of sub-sovereign sustainability representations when auditable management evidence is structurally absent.