Record and log every interaction you have with the police. File public police reports against the police. Catalogue and list their names and employment. We aim to eventually have every police officer added to our database. Help by adding your local department to the system.
The best criminals know how to conceal their tracks. Criminals in law enforcement often move frequently due to their constant abuses. Follow these people from department to department, with research you can add in missing information that you've found along the way.
With enough data patterns start to emerge. Some departments are worse than others. Is their a chain of abuses targetted towards just a few members of a department, whom often are involved with each other - or are the abuses systemic to the department?