Title: Crimewatch Tz: A Systematic Review Of Intelligent Mobile And Web-Based Crime Reporting And Response Systems For Enhanced Public Safety In Tanzania
Authors: Johnson George Mlelwa,Lawi Augustino Kihumbu,Alfa Edward Chengula,Carlos Ngolongolo,Catherine Peter Swai,Baraka Mwagala,Jeza Tunje
Volume: 10
Issue: 4
Pages: 10-15
Publication Date: 2026/04/28
Abstract:
Crime reporting in Tanzania remains fragmented, manual, and inaccessible to large segments of the population, resulting in widespread under-reporting, delayed police response, and systematically incomplete crime data. Over 40,000 criminal incidents are officially recorded annually, yet criminologists estimate actual incidence is three to five times higher due to structural barriers including distance to police stations, fear of retaliation, limited anonymity, and absence of digital reporting channels. This review paper analyzes the current state of digital crime reporting and emergency response systems applicable to Tanzania's public safety context, synthesizing literature on mobile civic technology, GIS-based crime mapping, crowdsourced incident platforms, and law enforcement digitalization initiatives. Drawing from African deployments including Kenya's Ushahidi platform and South Africa's Namola and MySOS applications, Tanzanian police digitalization roadmaps, and academic research on mobile emergency reporting in East Africa, the review identifies a critical gap: no comprehensive, locally adapted system in Tanzania simultaneously combines anonymous multimedia crime reporting, real-time GPS location tracking, police command dashboard integration, crime analytics for hotspot mapping, and Swahili-language offline-capable functionality. The proposed CrimeWatch TZ system directly addresses these interconnected failures through an intelligent mobile and web-based platform built on Flutter, Node.js, PostgreSQL, and React.js with end-to-end encryption and zero-knowledge anonymity architecture. Pilot evaluation in Dar es Salaam and Morogoro/Dodoma districts targets a System Usability Scale score of 70 or above and measurable reductions in crime reporting barriers across urban and rural contexts.