Conn. Gen. Stat. § 11-4c: Preservation of official documents in State Library.

Any official of the state or of any town, or any other official, may turn over to the State Librarian, with his consent, for permanent preservation in the State Library, any official books, records, documents, original papers or files, not in current use in his office, taking a receipt therefor which shall be recorded. Such official may, in like manner, turn over to the State Librarian, with his consent, for use of the state, any printed books, records, documents or reports not in current use in his office. The State Librarian, upon the request of any person entitled thereto, shall furnish a certified copy of any official state or municipal books, records, documents, original papers, land, or probate records in his custody, and such certified copy shall be entitled to the same weight as evidence as though certified by the authority by whom such record, document or paper was deposited with said librarian.