This thesis aims to define the scope of Article 3 ECHR, concerning children with traumas in registration and identification camps. The interpretation of the scope of Article 3 ECHR is based on a case study of the cases Khan v France and J.R. and Others v Greece. The result of the case study in conjunction with relevant legislation is applied to the Mavrovouni camp in Lesvos, Greece. The normative approach in this thesis is combined with hermeneutic analysis. The case study shows that inadequate housing conditions are unlikely to violate Article 3 ECHR. Nonetheless, the threshold of Article 3 ECHR is broader when children are subject to the conditions. Children are internationally recognized as more vulnerable, especially when they are traumatized. In conclusion, it is to say that a violation of Article 3 ECHR can be made out in the Mavrovouni camp concerning children that live in the camp.