Conn. Gen. Stat. § 46b-115ii

A court of this state shall treat a foreign child custody determination made under factual circumstances in substantial conformity with the jurisdictional standards of this chapter, including reasonable notice and opportunity to be heard to all affected persons, as a child custody determination of another state under sections 46b-115 to 46b-115t , inclusive, unless such determination was rendered under child custody law which violates fundamental principles of human rights or unless such determination is repugnant to the public policy of this state.