The current study focuses on exploring the relationships between various patterns of criminal acts committed, drug use, alcohol consumption, and adult personality traits in a sample with a low probability of life course persistent criminal behaviors. A retrospective questionnaire and the NEO-FFI (Five Factor Inventory) were administered to a volunteer sample (N=36). Three different frequencies of criminal acts committed (no-crimes, moderate-crimes, and substantial-crimes) were analysed based on adult personality traits, adolescent drug use, and adolescent alcohol use. The results of a MANOVA and discriminant analysis support the likelihood of groupings based on criminal acts committed being significantly influenced by drug use and alcohol use. Furthermore, agreeableness personality traits were significantly lower in the moderate-crimes group compared to the no-crimes group.