A child in conflict with the law is defined as a child who is undergoing a punishment process and is 12-18 years old and is not married. Based on data from the Directorate General of Corrections (Ditjen PAS) of the Ministry of Law and Human Rights in 2019, it was recorded that 56 cases of children had received court decisions. The purpose of this study was to determine the patterns of child growth and development and the factors that influence the development of children in the Penitentiary of West Kalimantan Province. This research is a qualitative research with research subjects are childrens at the Institute for Special Development for Children (LPKA). This research was conducted with structured interviews and observations of child prisoners in LPKA. Data analysis was carried out in the following stages, namely data reduction, data triangulation and data presentation and drawing conclusions/verification. The results found that the development of child prisoners in LPKA was not yet effective. The factors that influence child development are facilities, infrastructure and psychological aspects of the child.

Law number 11 of 2012 concerning the Child Criminal Justice System (UU SPPA) which has been published has brought a change in the paradigm of child crime with a prison nuance to a more child-friendly concept towards restorative justice. However, the phenomenon found in minors is still undergoing legal proceedings. Meanwhile, during the legal process, children are detained in detention centers and placed outside the Special Development Institution for Children (<em>LPKA</em>) and Temporary Child Placement Agency (<em>LPAS</em>). This research was conducted using a qualitative method to child prisoners in West Kalimantan Province. This research was conducted by conducting structured interviews and it carried the analysis of this research out with three lines, namely data reduction, data presentation and conclusion/verification. The findings of the study were helping to children in legal conflict in a fairly good range, even though help from expert advocates and the community had not been fully achieved. The reason it still places many children outside the <em>LPKA</em> is because there are no <em>LPKA</em> or <em>LPAS</em> in the district. Therefore, it is necessary to add <em>LPKA</em> or <em>LPAS</em> to pay attention to the needs of education, health and the needs of children of inmates so that it guarantees their growth and development.