A case or matter — an incident or issue under consideration, often used in police, legal, or corporate investigations; common in news and reports.
その不正行為は現在、別の部署の事案として扱われている。
That misconduct is currently being treated as a case handled by another department.
警察は複数の事案を関連付けて捜査を進めている。
The police are investigating by linking multiple cases.
この事案は法的判断が必要になる可能性がある。
This matter may require a legal ruling.