This article provides a description of a university-based project that used mock trials to train both practicum-level marriage and family therapy and law students in forensic work, and a qualitative investigation of student experiences with the training. The content of the training focused on American Association for Marriage and Family Therapy (AAMFT) core competencies that relate specifically to the legal aspects of therapy. This article describes the didactic training the students received to prepare for the mock trials, the structure and protocol of the mock trials themselves, and the specific AAMFT core competencies addressed in the project. The results of an analysis of focus group interviews with participating law school (n = 15) and marriage and family therapy (n = 19) students are presented as well as the results of a 36-item Knowledge, Skills, and Comfort Level Questionnaire completed by participating marriage and family therapy students. Participants discussed the value of the training with regard to preparation for mock trial procedures, preparation for testimony, importance of documentation, and cross-discipline collaboration issues. The article concludes with a discussion of how this type of training may be used in developing students' skills with regard to forensic and legal core competencies, and future research directions.