Cognitive behavioural “third wave” therapies in the treatment of justice-involved individuals: a systematic review

Psychological treatments have been increasingly used with justice-involved individuals; however, evidence regarding their effectiveness remains unclear. Thus, new approaches, such as Cognitive-Behavioural (CB) “third wave” therapies, have been implemented with justice-involved individuals. This systematic review describes and assesses the effectiveness of different CB “third wave” therapies, such as Dialectical Behavioural Therapy (DBT), Acceptance and Commitment Therapy (ACT), Compassion Focused Therapy (CFT), Mindfulness-based Approaches (MBA), Metacognitive Therapy (MCT), and Functional Analytic Psychotherapy (FAP) with justice-involved individuals. The research was conducted in four databases (i.e., B-on, PubMed, Science Direct, and PsycINFO) up to November 2023. Fifty studies were included in the review. DBT was the most assessed, followed by ACT. No studies using FAP and MCT were included. Preliminary evidence for the effectiveness of ACT, DBT, CFT, and MBA with justice-involved populations regarding aggression and violent behaviour reductions was found. However, the studies revealed some methodological shortcomings preventing us from reaching firmer conclusions. More research is needed to understand the impact of CB “third wave” therapies in forensic settings further.