지방자치단체가 구 하천법 시행 당시 이미 하천구역으로 편입된 토지에 대하여 착오로 공탁한 보상금을 토지 소유자가 수령한 경우, 부당이득반환청구권의 소멸시효 기산점.
When the landowner receives the compensation money deposited by the local government by mistake for land that was already incorporated into the river zone at the time the old river law was enforced, the starting point of counting the expiration date of the right to claim the return of unfair gains.