OPINION
¶ 1 This ease raises the question whether a convicted defendant who has filed a notice of post-conviction relief (“PCR”), but has not filed a petition seeking relief, has a right to compel discovery for his PCR proceedings. We hold that he does not.
I. Facts and Procedural Background
¶2 Dennis Canion was convicted of first degree murder, aggravated assault, escape, misconduct involving weapons, and solicitation to commit second degree murder.
See State v. Canion,
¶ 3 Canion sought review by filing a petition for special action in the court of appeals, which accepted jurisdiction and granted re
lief.
¶ 4 We granted review to decide whether the court of appeals abused its discretion in concluding that Canion had shown good cause to compel discovery and in ordering discovery at the pre-petition stage of the PCR proceedings.
See Twin City Fire Ins. Co. v. Burke,
II. Discussion
A. PCR Procedures
¶ 5 The Arizona Rules of Criminal Procedure outline the process by which a convicted defendant may obtain post-conviction relief. Ariz. R.Crim. P. 32. The PCR process begins when the defendant files a notice in the trial court in which he or she was convicted.
Id.
R. 32.4(a). The notice is followed by a petition setting forth any
of
eight enumerated grounds for relief.
See id.
R. 32.1;
State v. Carriger,
¶6 Rule 32 requires appointed defense counsel to file a PCR petition setting forth the defendant’s claims for relief within sixty days of appointment, Ariz. R.Crim. P. 32.4(c)(2), although extensions of time for filing the petition may be granted. Id. (requiring “extraordinary circumstances” for the second or subsequent continuance). In this case, defense counsel filed the PCR notice on August 10, 2001. Soon thereafter, Canion’s attorney filed a motion seeking discovery, and counsel have since been attempting to resolve the discovery dispute. Thus at this juncture, nearly four years after the filing of the PCR notice, no PCR petition has been filed.
B. Discovery in PCR Proceedings
¶ 7 Rule 32 itself does not provide a process for obtaining discovery in PCR proceedings. Canion has requested discovery on two bases: that the information he seeks is exculpatory evidence required to be disclosed by
Brady v. Maryland,
¶ 8 The Court of Appeals found, and the State acknowledges, an ethical and constitutional obligation to disclose clearly exculpatory material that comes to its attention after the sentencing has occurred,
see Brady,
¶ 9 The issue is not whether the State was required to disclose certain materials before trial, but whether Canion may, at this pre-petition stage of a PCR proceeding, compel discovery to support his argument that the State failed to make adequate disclosure. Canion asserts that Rule 15.1 of the Arizona Rules of Criminal Procedure, which governs discovery and disclosure in criminal cases, imposes an obligation on the State to disclose such information. As the State correctly observes, however, Rule 15 applies only to the trial stage, not to PCR proceedings.
¶ 10 Despite the absence of explicit authority, both parties acknowledge that trial judges have inherent authority to grant discovery requests in PCR proceedings upon a showing of good cause.
Cf. State v. Van Den Berg,
¶ 11 The insistence on compliance with Rule 32 is not a mere formality. We have consistently required that parties “strictly comply” with the rule to be entitled to relief.
Carriger,
¶ 12 To that point, Canion asserts in his supplemental discovery memorandum that the State violated its duty under Rule 15 to disclose evidence at trial. We have no petition before us, however, to explain whether, if true, such an allegation would state a colorable claim — that is, one that would entitle Canion to relief under Rule 32.
See Carriger,
¶ 13 Even assuming, however, for argument’s sake, that the State did not fully disclose Rule 15 materials before trial, that claim as pled does not fall within the claims listed under Rule 32.
See
Ariz. R.Crim. P. 32.1(a)-(h). While improper, a violation of Rule 15.1, without more, is not a ground that would entitle Canion to post-conviction relief. And to the contrary, the State is entitled to a presumption that Canion’s convictions were regularly obtained and are valid, a presumption that Canion bears the burden of overcoming.
See State v. McCann,
¶ 14 Because no PCR petition has been filed in this case, we do not know the basis for Canion’s claim for Rule 32 relief and cannot assess whether any violation he might allege would state a colorable claim. Moreover, because the trial court denied discovery on the procedural ground that no petition was pending, we lack any record on which to determine whether Canion has made a color-able claim on which PCR relief may be granted. Without a petition or record, we lack any context in which to assess Canion’s request for discovery. Canion must follow the PCR procedure outlined in Rule 32.
Carriger,
¶ 15 At oral argument, Canion’s counsel objected that requiring him to file his petition before obtaining discovery places him in a procedural dilemma. He maintains that because a PCR petition must “include every ground known to [a defendant] for vacating, reducing, correcting or otherwise changing all judgments or sentences imposed upon him,” Ariz. R.Crim. P. 32.5, he must ascertain all potential grounds through discovery before filing his petition.
¶ 16 We see no such dilemma. Rule 32.6(d), which permits a defendant to amend his petition “upon a showing of good cause,” adopts a liberal policy toward amendment of PCR pleadings.
Rogers,
¶ 17 In sum, in this case, after filing only his PCR notice, Canion requested various materials used at his trial or available at that time, alleging, without elaboration, that they were “needed to present an effective defense.” Such a claim, unsupported by a PCR petition, is insufficient to overcome the presumptions that the materials were made available before trial and that Canion’s convictions were regularly obtained and are valid.
See Bracy v. Gramley,
¶ 18 Because no petition has been filed, Canion has neither established good cause for discovery nor made a colorable claim that he is entitled to post-conviction relief. Like others who seek Rule 32 relief, Canion must file his petition, complete with affidavits and relevant portions of the record that establish a ground that would provide a basis for relief under Rule 32.
III. Conclusion
¶ 19 For the foregoing reasons, we affirm that the State must disclose clearly exculpatory evidence that comes to its attention after a trial has concluded, but reverse the court of appeals’ conclusion that the State must also disclose other material in the absence of a filed PCR petition. We therefore vacate the opinion of the court of appeals and remand the ease to the superior court for proceedings consistent with this opinion.
