Conn. Practice Book § 23-30 — The Return

(a) The respondent shall file a return to the petition setting forth the facts claimed to justify the detention and attaching any commitment order upon which custody is based.

(b) The return shall respond to the allegations of the petition and shall allege any facts in support of any claim of procedural default, abuse of the writ, or any other claim that the petitioner is not entitled to relief.