论不当得利返还诉讼中无法律上原因之举证责任

The Distribution of Burden of Proof on No Legal Reasons in the Lawsuit of Restitution of Unjust Enrichment

在不当得利返还诉讼中,关于无法律上原因这一要件事实的举证责任分配问题向来争议较大。尽管2015年《民诉法解释》第91条已就举证责任分配规则作了一般性规定,却未能对此一问题提供具体的解决方案,实践个案操作上仍存在较大困难。基于此,类型化分析举证责任分配诸要素,综合考量个案正义平衡之需求,探索相对完备的不当得利之举证责任分配规则,实为必要。

In the lawsuit of restitution of unjust enrichment,a big dispute of the distribution on burden of proof of no legal reasons has been existed.Although the judicial interpretation about civil procedure law has enacted in 2015,and already made the general provision on the distribution of the burden of proof,it still failed to provide a uniform distribution plan,and there are still great difficulties in case operation.Thus,it is necessary to explore relatively complete theory about the distribution of burden of proof on unjust enrichment theory,by taking into a consideration of all elements of the distribution on burden of proof,and weighing the needs about balance of case justice.