The Convention on the Rights of the Child became Swedish law on January 1st 2020. By studying The Convention my purpose was to figure out how it is practiced in the Swedish District Courts. Even though the Social Service is a heavy player in this subject, limitations keep this study in the Court area.The Convention´s articles 3 and 12 are in focus studying 69 custody disputes and using both quantitative, as well as qualitative methods. The results show judges do take the best interests of the child into consideration according to the CRC. However, during the second part of this study, it turns out that article 12; treating a child's right to express its opinion and get it respected, is not yet a part of all judges’ decisions in custody disputes.After this study, a conclusion can be made that the Social Service has a huge responsibility in this subject, to serve the Courts all information needed, but still the Court must have a responsibility to claim what they need on the table to make a fair decision according to the life of a child.