Many States in the USA have implemented a "track-and-trace" program for their cannabis. The States use this information for enforcement. These programs have many bugs -- observable/repeatable bugs. Then enforcement uses the data from the buggy software to cite businesses for failures of their "track-and-trace" requirements. (eg: the system magically restores weight to zero-weight lots, or marks dead trees as alive).

In Washington State they started with BioTrackTHC; couldn't share the code cause it's a proprietary and a security risk; however they were dumping parts of the database as CSVs so folk could check that (and confirm some bugs!). Then WA switched to LeafData (MJ Freeway) and wouldn't share that code either; continued to share similar data-dumps. Now WA has moved to just uploading CSVs to the State system in code they wrote themselves -- and still won't share the code (and now are doing even less to share the data).

It's frustrating when viable open source solutions exist and are actively ignored by the State agencies (we were blocked from even participating in workgroups about the future of T&T (which don't really matter, they didn't even follow the recommendations of their own workgroups))