This study assessed the challenges and successes of Inter-Agency Consultative Committee on Election Security Management (ICCES) during the 2023 general election in Adamawa state. Guided by two specific objectives and two research questions. The study employed a descriptive research design with a mixed method approach, combining quantitative data from structured questionnaires and qualitative insights from Key Informant Interviews (KIIs) to gain a comprehensive understanding of the phenomenon being interrogated. The study was conducted in Adamawa State, focusing on six strategically selected Local Government Areas: Furore, Gombi, Lamurde, Mubi North, Numan, and Yola North. The total study population was 515,893 individuals, including INEC staff, ICCES personnel, election observers, political party officials, and eligible registered voters. Using Yamane’s formula, a sample size of 400 respondents was determined and proportionately allocated across the population categories. Data collection instruments were validated by experts in political science and security studies, while the reliability test using Cronbach’s Alpha produced a coefficient of 0.86, indicating high internal consistency. Quantitative data were analyzed using frequencies, means, and standard deviations, while qualitative data were subjected to thematic content analysis. The findings of the study revealed that major challenges faced by ICCES included logistical difficulties in deploying security personnel, political interference, inadequate funding of security agencies, and weak coordination among stakeholders like INEC, ICCES, and local security outfits. However, ICCES recorded notable successes such as the reduction in violence at polling units, protection of election materials, restoration of public confidence in the process, and improved collaboration among security agencies. Finally, the study recommended that government should increase funding for Inter-Agency Consultative Committee on Election Security (ICCES) and ensure proper coordination among security agencies.