The majority of the documents were initially classified in State Security Service. In September 2015, all documents were declassified. As mentioned in SOA's Public Report for 2016, the “Agency's intention is that those valuable archival documents become available to the scholarly and general public, thereby enabling a clearer overview of that period of Croatian history.” (SOA. Public Report 2016, p. 42).

A bulletin dated 25 September 2015 and posted on the Agency's website also points out that acquisition of the State Security Service Collection by the Croatian State Archives “demonstrates the distance between the SOA and the activities, methods and traditions of the former State Security Service.” It was concluded that by this such the “SOA is recognised as a modern security-intelligence agency in a democratic state which adheres to the practice of services in states with a long democratic tradition where this pertains to the declassification of documents for which there are no longer grounds for maintaining confidentiality.” It led to increased possibilities for research into the phenomenon of cultural opposition and dissent, as well as state surveillance of such activities.