Background: Delinquency has been increasingly linked to neuropsychological dysfunction, particularly in domains of executive functioning and emotional regulation. Objective: This review evaluates cognitive and emotional impairments underlying delinquent behavior, integrating recent evidence from meta-analyses and systematic reviews. Methods: A novel synthesis framework, the Neuro-Cognitive Emotional Integration Model (NCEIM), was developed to combine findings from large-scale analyses of executive functioning deficits (working memory, inhibition, shifting) and psychiatric vulnerabilities (conduct disorder, anxiety, depression, ADHD, PTSD). Evidence from studies published between 2015 and 2025 was systematically examined. Results: Delinquent populations show consistent impairments in executive functions (pooled effect size d = 0.42) and elevated prevalence of conduct disorder (43%), anxiety (19%), and depression (18%). Both cognitive and emotional deficits interact to increase vulnerability for antisocial and delinquent outcomes. Conclusion: The NCEIM highlights how dual deficits in cognition and emotion jointly contribute to delinquency, offering a comprehensive basis for early screening, forensic assessment, and rehabilitative interventions.