 In 1643 and 1644 he again served as an Assistant to the General Court.Rumors that the Narragansetts would form an alliance with several other tribes to destroy the English settlers prompted Wyllys and the General Court to send two delegates to a meeting in Boston which later resulted in the Articles of Confederation between the colonies of Massachusetts Bay, New Haven, and Connecticut, a compact to provide cooperation in defense of the colonies.In December 1642, the General Court passed the colony's first penal code, which named 12 capital crimes.