The best interests of the child should be a primary consideration for Member States when applying this Regulation. Where the requesting Member State establishes that Eurodac data pertain to a child, those data may only be used for law enforcement purposes, in particular those relating to the prevention, detection and investigation of child trafficking and other serious crimes against children, by the requesting Member State and in accordance with that Member State’s laws applicable to minors and in accordance with the obligation to give primary consideration to the best interests of the child.