Observatório de cibercrimes: prototipação e desenvolvimento do painel web interativo

Abstract

The growth of crimes committed in the digital environment has pressured public au- thorities and academia to develop tools that make cybercrime data more accessible and interpretable. This work presents the development of an interactive web dashboard for analyzing judicial decisions classified as cybercrimes in the State of São Paulo. The sys- tem consumes a public API of legal cases, filters only records marked as cybercrimes, and performs data processing (date standardization, normalization of municipality names, and aggregations by year, subject, and district). The interface, built with Angular and ECharts, provides a choropleth map (heatmap) of São Paulo municipalities, bar charts by year, a pie chart by subject, a ranking of topics, and a searchable, paginated table of cases. Map ranges are calculated dynamically: when the maximum number of cases on the map is ≤ 4, integer steps (1, 2, 3, 4) are used, and in larger scenarios, breakpoints by percentiles (25%, 50%, and 75%) are applied, avoiding overlap and reinforcing readability. The dashboard is responsive, offers light/dark mode, and includes a state selector prepared for future datasets. Results show that the solution enables the exploration of temporal and spatial patterns with low response time, preserving privacy through aggregated pub- lic data. This work contributes a replicable pipeline for geovisualization of judicial data and a functional prototype, paving the way to extend coverage to other states and data sources.