The article summarizes findings highlighted with a study on narrative structures and contents about crimes. In this paper we pursue the analysis of narrative structures. The qualitative research starts by theoretical and epistemological accounts and it brings forward a content analysis technique which improves the value of interpretative components in research process. This point of view is instantiated here: the research is conducted by means of narrative interviews and it involved 34 participants prisoners in prisons Regina Coeli and Rebibbia. The objective was to reconstruct narrative structures of accounts gathered in a non inquisitive context: more specifically, our interest was aimed to verify the possible presence of narrative structures underlying these accounts. All the interviews were analyzed through ATLAS.ti specifically referring to Evaluation model by W. Labov. The discussion of findings is complemented with the implications of employment of narrative methodologies and interpretative content analysis.