Conn. Practice Book § 9-18 (2026)

Sec. 9-18. Addition or Substitution of Parties; Additional Parties Summoned in by Court The judicial authority may determine the controversy as between the parties before it, if it can do so without prejudice to the rights of others; but, if a complete determination cannot be had without the presence of other parties, the judicial authority may direct that they be brought in. If a person not a party has an interest or title which the judgment will affect, the judicial authority, on its motion, shall direct that person to be made a party. (See General Statutes § 52-107 and annotations.) (P.B. 1978-1997, Sec. 99.)