You may not want an ancestor to appear in this small collection, 12,214 records, obtained via the West Midlands Police Museum, which covers England and Wales, not just the West Midlands. If you do find someone you’ll know a lot more about them that typical for those who “kept their nose clean.”
Here’s an example of an original entry.
The first column is a reference to a photograph of the individual, collected in a rogues gallery on a page near the entry.