Conn. Gen. Stat. § 52-324: Certificate of court clerk upon happening of certain events or attachment becoming ineffective.

If an attachment, such as is set forth in section 52-322, has been made and the plaintiff has withdrawn the plaintiff's suit or has been nonsuited or final judgment has been rendered against the plaintiff, or if such suit has not been returned, or if for any reason such attachment has become of no effect, the clerk of the court to which such suit has been made returnable shall, upon the request of any person interested, issue a certificate in accordance with the facts, which certificate may be filed in the office of the town clerk, and such town clerk shall record such certificate in the land records.