Even when the Japanese courts have jurisdiction over an action, the court may deny all or part of the action if it finds there are special circumstances because of which, if the Japanese courts were to conduct a trial and reach a judicial decision, it would be inequitable to either party or prevent a fair and speedy trial, in consideration of circumstances such as the nature of the case, the degree of burden that the defendant would have to bear in responding to the action, the location of evidence, or the interests of any children of the parties to the familial relationship that the action concerns who have not yet attained the age of majority.
裁判所は、訴えについて日本の裁判所が管轄権を有することとなる場合においても、事案の性質、応訴による被告の負担の程度、証拠の所在地、当該訴えに係る身分関係の当事者間の成年に達しない子の利益その他の事情を考慮して、日本の裁判所が審理及び裁判をすることが当事者間の衡平を害し、又は適正かつ迅速な審理の実現を妨げることとなる特別の事情があると認めるときは、その訴えの全部又は一部を却下することができる。
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