The aim of this study is to explore the historical Study of Police Force’s involvement in Multiparty General Election in Nyamagana District, Tanzania, 1995-2015, essentially to identify the role of Tanzania police force during the multiparty general elections 1995-2015, to examine the performance of the TPF during multiparty general elections process, to identify the challenges facing Tanzania Police Force during multiparty general elections process. The study was conducted in Nyamagana district, whereby the sample size of sixty eight respondents as well as purposive and snow-ball sampling procedures were used. In addition, Interview, Focus Group Discussion and Documentary review were used as data collection tools. The findings revealed that, safeguarding the security of persons and their property during the campaign period and voting, ensuring the safety of electoral officers before, during and after elections, providing security for candidates during the campaigns and elections, maintaining peaceful conditions, law and order around the polling and counting centres and providing security for electoral officials at voting and counting these were the role of TPF during the multipart general elections. Also education, engineering, encouragement, enforcement and Emergency Preparedness were used as strategies by the Nyamagana Police Force so as to ensure peaceful elections process. Again, revealed that police are partisan with ruling in party, inadequate manpower, logistics, political control, and low allowance were among of the challenges facing Nyamagana Police Force. The study recommended that, Political leaders, parties and citizens should be sensitized and observes all electoral procedures throughout the multiparty general election process in order to ensure smooth and effective Police Force operations over the Nyamagana District. Another is that Government should prepare enough election budgets in which the portion of fund allocated to the Nyamagana Police Force be enough and equip the police officials with the electoral requirements for better performance and efficiencies.