Role of law enforcement agencies in suicide prevention: A scoping review

The role of Law enforcement agencies (LEA) is significant in suicide prevention efforts as first responders. Nevertheless, no published study to date has systematically compiled the body of knowledge about suicide prevention efforts involving LEA. The current scoping review aims to methodically map and examine the peer-reviewed literature and grey literature on the role of LEA in suicide prevention. Electronic searches of the databases like Medline, PsycINFO, Google Scholar, Web of Science, Scopus, CINAHL and Google were conducted using a comprehensive search strategy to identify relevant resources. Grey literature was searched searches were undertaken on relevant databases and, as well as government and organisational websites. The reporting of the review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews guidelines. The inclusion criteria comprised research articles, reports, and guidelines/policy documents on the role of law enforcement agencies (LEAs) in suicide prevention. Studies on prevalence, custodial settings, non-English publications, and reviews were excluded. Inclusion criteria comprised research articles, reports and guidelines/policy documents focusing on law enforcement's role in suicide prevention. Studies focusing solely on prevalence or epidemiology, studies confined strictly to custodial settings, publications not in English and systematic reviews or meta-analyses were excluded. Out of 3,327 records screened, the full texts of 82 resources were included in the review. All the resources identified were categorised between peer-reviewed literature and grey literature. Resources were thematically categorised based on functional roles into- I. Strategic and System-Embedded Roles of LEA, II. Capacity Building and Training Oriented Engagements, III. Surveillance Reporting and Data Systems Role, IV. Community Facing and Preventive Engagement, and V. Means Restriction and Environmental Prevention Roles. The chronological development of the resources was inconsistent. Most resources were from high-income countries, focusing on the evaluation of training, capacity building programmes, surveillance initiatives and the exploration of varied roles of LEA across custodial, community and crisis settings and other interdisciplinary collaborations. Notably, the resources show increased disparity in quantity and research methodological approaches across geographies. The review highlights substantial heterogeneity and a limited resource base from low- and middle-income countries on the role of LEA in suicide prevention, with a dearth of structured, evidence-based, scalable models in these settings. These gaps point to an urgent need for locally relevant and cross-sectoral models that position law enforcement as integral partners in suicide prevention efforts, especially where these agencies play a major role as first responders.