This study explores some poorly documented elements in child welfare services, by using administrative data (N=40,079). It looks at the service trajectory of youths reported to child welfare authorities or evaluated for suicidal ideation or acting out, or because of their refusal to receive mental health care threatens their security. The risk management of those youth differs from what it is for other youth signaled to the authorities for other abuse motives: It seems more cautious. This article aims to inform researchers and program designers about issues associated with the reality of those vulnerable youth in child welfare services, for then offering them more specialized services and maximise their social inclusion chance.