Also according to the CORI Unit website:
"The source of criminal history information contained in the iCORI database is the Office of the Commissioner of Probation (OCP), a subdivision of the Administrative Office of the Trial Court (AOTC). Accordingly, OCP is the only state agency that can change information that appears in the iCORI database. Further, only OCP can seal criminal convictions."In 2010, Massachusetts reformed the CORI law which significantly updated how CORI's could be accessed, used, sealed, and shared. This chart produced by the Boston Workers Alliance clarifies the changes in the 2010 reform and is a great overview of how CORIs work.
If you want to know what is on your report prior to someone else accessing it you can request a copy of your CORI here.