this research paper says that the basis of the collection is 2019 version law from fifty US states. The descriptions of why and how are useful here, but this 2019 date implies that a more recent collection, or a very recent collection, is not available to the public under a broad license. The texts they build from are specifically owned by the public, not a research group or spinoff company. Historically, compendiums, analysis and indexing is real work that costs real money, usually in protected print format.<p>Is it too much to ask for, that any link to code or data might be included somewhere in this pre-print research paper?