Does this software category have a name? Or do you have the names of specific software that is popular, but expensive? I am curious how it looks and works
A very famous and widespread piece of software for law enforcement cases is called I2 Analyst's Notebook, which lets you create/edit/search/visualize case notebooks [1]. Thomson Reuters has Case Notebook, which is more for lawyers [2].
I'm not sure on the category, maybe law enforcement case management? I can't remember the name of the software I used (it was 20 years ago) but here is an example of one:
[1] https://docs.i2group.com/anb/9.4.1/analysts_notebook_welcome... [2] https://www.thomsonreuters.ca/en/case-notebook.html