The purpose of this essay is to investigate and analyze how specifically appointed social workers – barnsekreterare work within the foster care with foster placed children and their network and how specifically appointed social workers specifically work with the best interest of the child in their daily work and in relation to attachment theory within foster placement for children and how they prioritize the attachment between children, foster parents and biological parents throughout foster placements. For this essay there will be documented research of the topic and earlier studies, together with the theory done on attachments theory. This essay will also include the point of view of the best interests of the child throughout the text.  Three semi-structured interviews are going to be held with three different specifically appointed social workers within one big city in Sweden. Sixteen open questions are going to be asked which are divided in between the work social workers do with biological parents versus foster parents. The result will then be documented, consisting of quotes from the social workers, a summary of their answers. With the documentation, an analysis will continuously be made with the purpose of finding similarities and differences between the earlier studies made and the answers of each social worker.  From the gathered information and the analysis of the empirical material the conclusion was made that the specifically appointed social workers work very thoroughly with upholding the law stated rights of every individual within the child’s network, but due to the variety of errands and cases it is a constant moral dilemma for most social workers. The importance of the attachment however is something that is never forgotten but modified to best suit the child’s needs within the foster home.