Purpose Using conservation of resources (COR) theory the study investigates the interrelationships between optimism, bidirectional work-family conflict, enrichment, and psychological health. Design/methodology/approach The data were gathered from 356 Indian police officers using a survey questionnaire and purposive sampling technique. Findings The results inform that optimism mitigates family to work conflict (FWC) and fosters work to family enrichment (WFE), family to work enrichment (FEW), and psychological health in the police. The results further suggest optimism influences psychological health via WFE (partial mediation). However, FWC and FEW do not influence mental health. Research limitations/implications The study was conducted in a specific culture and context (Rajasthan police), so results cannot be generalized. The study discusses the practical implications for police practitioners. Originality/value The study adds to work-family literature by considering personal differences that have received less space in work-family models. To the best of authors' knowledge, none of the previous studies have considered optimism, the work-family interface and psychological health in the police.