This paper studies the protection of child rights in criminal justice system from both material and procedural angles. This paper analyzes the implementation of key international legal standards into the croatian legislature. Legal descriptions of criminal offences are studied from the perspective of international documents which govern said offences. The rights of child victims are analyzed in the context of Directive of establishing minimum standards on the rights, support and protection of victims of crime. The status of child offenders in croatian law is also analyzed. The roles of the police and the Department of Social Services in the cases that include child victims are also studied. For the purpose of studying the fenomenology of offenders and victims of the most frequent crimes against children, the data collected from Croatian Bureau of Statistics and Government Administration is analyzed. At the end of the paper the sentences against perpertrators of crimes against children are analyzed.