Conn. Gen. Stat. § 52-50: Persons to whom process shall be directed.

(a) All process shall be directed to a state marshal, a constable or other proper officer authorized by statute, or, subject to the provisions of subsection (b) of this section, to an indifferent person. A direction on the process “to any proper officer” shall be sufficient to direct the process to a state marshal, constable or other proper officer.

(b) Process shall not be directed to an indifferent person unless authorized by statute. Any indifferent person who, knowing that he is not authorized to do so under this section or any other provision of the general statutes, serves process shall be guilty of a class A misdemeanor.

(c) Service of motions for modification, motions for contempt and wage withholdings in any matter involving a beneficiary of care or assistance from the state and in other IV-D child support cases may be made by any investigator employed by the Commissioner of Administrative Services or the Commissioner of Social Services.

(d) Service of motions for modification, motions for contempt and wage withholdings in any matter involving child support, including, but not limited to, petitions for support authorized under sections 17b-745 and 46b-215, and those matters involving a beneficiary of care or assistance from the state, and service of other process in IV-D support cases, as defined in subdivision (13) of subsection (b) of section 46b-231, may be made by a support enforcement officer or support services investigator of the Superior Court.

(e) Borough bailiffs may, within their respective boroughs, execute all legal process which state marshals or constables may execute.

(f) (1) Process directed to a state marshal by an attorney-at-law or public agency, as defined in section 52-50a, shall be delivered to such state marshal by either (A) providing the original process printed on paper and personally signed in ink by the issuing authority, along with sufficient copies for the state marshal to effectuate service, except that in matters where the process to be served has been issued by or filed with the Judicial Department before delivery to a state marshal, the original process delivered to such state marshal as prescribed by this subparagraph may be a printed copy of the process as filed with the Judicial Department, or (B) transmitting the process to a state marshal electronically pursuant to the provisions of section 52-50a.

(2) Process directed to a state marshal by parties other than an attorney-at-law or public agency, as defined in section 52-50a, including self-represented parties, which are returnable to a court, agency, board or tribunal, as the case may be, which is located in this state and is established by the general statutes or a special act, shall be delivered to such state marshal by providing the original process printed on paper and personally signed in ink by the issuing authority, along with sufficient copies for the state marshal to effectuate service, except that in matters where the process to be served is on file with the Judicial Department before delivery to a state marshal, the original process delivered to such state marshal as prescribed by this subparagraph may be a printed copy of the process as filed with the Judicial Department.

(3) Process directed to a state marshal which originates from a court or public agency outside of this state, which is established under a law other than the law of this state may be transmitted to a state marshal electronically pursuant to the provisions of section 52-50a.

(4) In the case where sufficient copies of the documents to be served, as provided for in this section, have not been given to a state marshal to effectuate service, a state marshal may charge for the production of actual copies produced as needed to complete service of process, and shall charge the fees provided for in subsection (i) of section 52-50a, subject to the exclusions set forth in said subsection, as if the process were transmitted electronically.