It is also the only State Agency with the authority and access to send or request changes to, information in NICS.
Yes, all local agency CH, warrants, fingerprints, etc. all move through CJIS when going back and forth with NCIC. They are the central POC for NCIC for all MD state and local law enforcement agencies.
I used to deal with them on audits when I had Central Records and Criminal History under my command. Not MSP people, but civilian CJIS employees. Not the brightest bulbs on the tree, at least that was my opinion of the people I met. Federal DOJ would audit us too and it was a real audit. We would never get gigged on anything. But the state people were determined to find anything silly to justify their jobs. I always hated when they came around because I knew I was going to wind up answering for some stupid comments on a report they would do about things that weren't even relevant.