Conn. Gen. Stat. § 12-15a
Disclosure of tax returns or return information to authorized member of organized local police department.
(b) No member of an organized local police department who receives any return or return information pursuant to this section may disclose such return or return information except in connection with a criminal prosecution, including any judicial proceeding related thereto, when such return or return information is directly involved in and necessary to such prosecution. Any person who violates this subsection shall be fined not more than one thousand dollars or imprisoned not more than one year, or both.