Ariticle41Best law for children applies

This article states that if a State Party has domestic laws or international conventions that guarantee children's rights more fully than this Convention, those laws or conventions have a higher priority than this Convention and are applicable to children. At the same time, it indirectly prevents or prohibits the lowering of the level of children's rights protected by the Convention.

On the phrase “international law”

The phrase “international law” in item b is a broad concept and definition that includes not only “treaties,” “agreements,” and “arrangements” but also “customary international law (rules between nations that are mostly undocumented).” In other words, the effective "international law" is extremely broad, and from this, it can be seen that the Convention as a whole is firmly committed to maintaining a high level of protection of the rights of the child.