People want to track police activity for accountability, but current solutions are either invasive or lack privacy protections.
A mobile/web app with encrypted submissions, verified locations, and heatmaps of police presence. Data could be used by journalists and advocacy groups.
NGOs and media organizations would pay for aggregated, anonymized data to monitor patterns of police behavior.
Start with a simple reporting tool for location and incident type, with optional photo uploads (blurred by default).
Biggest risk is legal pushback from law enforcement agencies resisting transparency.