http://dx.doi.org/10.5007/2177-7055.2016v37n73p141 This study explores the social representations of judges of the TJDFT about the trajectories of inmates of Santa Maria Unit – a juvenile prison for girls. We tried to understand how this category of offenders teenagers is constructed on the sentences. To do so, we performed a content analysis of 17 sentences. We found that there is an emphasis on the description of the “lost trajectories” of these girls. Their “career of indisciplines” justifies the detention and the sentences have a positive role in the constitution of criminal subject, naming the social type from who we can expect criminal behavior.