You might try defining what the "ideal" department's data would look like: what categories of data, what columns each record has, what the values are for each, etc. Ideally you'd stamp it with a year and give it a spiffy name so it could be the National Police Data Reporting Standard 2022 (NPDRS.2022) or something.

Departments that are trying to be transparent (or who just don't want to deal with figuring it all out from scratch) may be happy to adopt something considered a "standard" for tracking and reporting data. In some cases it means it is a checkbox they can check without having to deal with annoying people and their annoying questions... but that hardly matters so long as the data is made available. It would also give companies developing software for police departments a target to aim for.