The petitioner, Nathan Dull, appeals from the habeas court's dismissal of his petition for a writ of habeas corpus as untimely pursuant to General Statutes § 52-470(d). 1 Specifically, he argues that he established good cause for the delay in the filing of his third habeas corpus petition. We are not persuaded and, accordingly, affirm the judgment of the habeas court.

This appeal requires us to review the underpinnings of § 52-470, which concerns the summary disposal of habeas corpus petitions. In 2012, the General Assembly enacted No. 12-115 of the 2012 Public Acts (P.A. 12-115), which amended § 52-470, by adding new subsections (c) through (e), establishing procedures for the court to respond to untimely habeas filings. Included in those amendments is a provision that there shall be a rebuttable presumption that a habeas petition challenging a conviction has been delayed without good cause if the petition was filed two years or more after the date on which a final judgment has been entered on a prior petition, or after October 1, 2014, whichever date is later. The statutory amendments also provide that when a petition is filed in which the rebuttable presumption of untimeliness applies, the court, upon request of the respondent, may issue an order to show cause why the petition should be permitted to proceed and not be dismissed. General Statutes § 52-470(e). 2

In the matter at hand, the record reflects that the petitioner was convicted of murder in violation of General Statutes § 53a-54a in 1998 after a trial before a three judge panel. In rendering judgment of conviction, the panel rejected the petitioner's insanity defense, and the conviction was affirmed on appeal. State v. Dull , 59 Conn.App. 579 , 757 A.2d 1194 (2000). Thereafter, on December 19, 2002, the petitioner filed his first habeas corpus petition attacking his conviction. That petition was denied in 2005, and the habeas court's judgment was affirmed by this court on appeal. Dull v. Commissioner of Correction , 96 Conn.App. 787 , 901 A.2d 1239 (2006). Later, on March 30, 2010, the petitioner filed a second habeas corpus petition, through which he again challenged his conviction. The second petition was withdrawn by the petitioner on October 13, 2011. This third petition was then brought on June 11, 2015, after the October 1, 2012 effective date of P.A. 12-115 and several months after October 1, 2014. 3

On the basis of the lapse of time between the judgment on the first petition and the filing of the third petition, and the fact that the third petition was filed after October 1, 2014, the respondent, the Commissioner of Correction, filed a motion, pursuant to § 52-470(e), seeking an order that the petitioner be required to show cause why his petition should not be dismissed as untimely. Thereafter, pursuant to the court's show cause order, a hearing was conducted at which the petitioner testified to his belief that his mental health condition prevented him from timely filing this petition, and, thus, good cause existed for the delay in its filing. After considering the evidence, the court issued its order in which it determined that the petition was untimely and that the petitioner had failed to demonstrate good cause for its late filing. Accordingly, the court dismissed the petition. This appeal followed.

While the appeal was pending and after oral argument, this court ordered the habeas court to file an articulation setting forth whether proof of the defendant's claim of mental health impairment constituted good cause for the untimely filing of this petition. In response, the court stated: "The petitioner's mental health problems were not so significant as to interfere with his ability to file a timely petition." (Emphasis in original.) The court explained that its reasoning was based on its assessment of the habeas evidence as well as a review of the record regarding the defendant's conviction and prior habeas petitions.

We note that the habeas court's decision to dismiss a habeas petition is a matter of law, subject to plenary review. Anderson v. Commissioner of Correction , 148 Conn.App. 641 , 644, 85 A.3d 1240 , cert. denied, 311 Conn. 945 , 90 A.3d 976 , cert. denied sub nom. Anderson v. Dzurenda , U.S., ---U.S. ----, 135 S.Ct. 201 , 190 L.Ed. 2d 155 (2014). On the basis of our review of the court's thorough articulation and our review of the record, we find no fault in the court's conclusion that the petitioner has not shown good cause for his untimely filing of this habeas corpus petition. Accordingly, the court did not err in dismissing the petitioner's third petition for a writ of habeas corpus.

The judgment is affirmed.