This study examines the predictive factors of job performance involving work stress, social support and emotional intelligence. Using two stage cluster random sampling, data were collected from 424 police in Selangor, who responded to Police Stress Questionnaire (PSQ), Job Content Questionnaire (JCQ), Emotional Intelligence Self-Description Inventory (EISDI) and Formal Performance Appraisals. The findings show that work stress, social support and emotional intelligence were significantly correlated with police job performance. In addition, regression analysis reveals that emotional intelligence was the most significant predictor of job performance. Implication of this study indicates the important of emotional intelligence in enhancing job performance among police personnel in Selangor. The paper concludes by highlighting future research directions which can offer a more comprehensive study in predicting job performance particularly in the context of Malaysia.