JUSTICE FREEMAN
delivered the judgment of the court, with opinion.
Chief Justice Fitzgerald and Justices Kilbride and Burke concurred in the judgment and opinion.
Justice Garman concurred in part and dissented in part, with opinion, joined by Justices Thomas and Karmeier.
OPINION
Following a jury trial, defendant, Richard Hodges, was convicted of first degree murder, aggravated discharge of a firearm, and unlawful use of a weapon by a felon. The circuit court of Cook County sentenced him to 70 years’ imprisonment. On direct appeal, the appellate court affirmed defendant’s convictions and sentences. People v. Jackson, Nos. 1 — 03—2233, 1 — 03—3099, 1 — 03—3216 cons. (2005) (unpublished order under Supreme Court Rule 23).1 Defendant thereafter filed a pro se petition for relief under the Post-Conviction Hearing Act (the Act) (725 ILCS 5/122 — 1 et seq. (West 2006)). The circuit court summarily dismissed the petition as frivolous and patently without merit, and the appellate court affirmed. No. 1 — 06—0902 (unpublished order under Supreme Court Rule 23). We granted defendant’s petition for leave to appeal. 210 Ill. 2d R. 315. For the reasons that follow, we reverse the judgment of the appellate court.
I. BACKGROUND
Defendant’s convictions stemmed from a shooting incident that occurred around 1 a.m. on January 20, 2001, at a gas station on Chicago’s West Side. According to the evidence adduced at trial, defendant and his nephews, Toniac Jackson and David Jackson, arrived at the gas station in a black Geo Tracker shortly after 1 a.m. At about the same time, the victim, Christopher Pitts, and several of Pitts’s friends, including Marquis Scales, arrived at the gas station in a red van. Pitts got out of the van and walked to the gas station’s cashier’s window, where he saw Toniac Jackson. Following an argument between the two men, who were members of the same gang, Pitts turned and ran around the corner of the gas station building and then behind the building. Toniac began chasing Pitts, and defendant joined in the chase. Toniac fired a 10-millimeter handgun at Pitts, and defendant fired shots in Pitts’s direction with a nine-millimeter handgun. Pitts was later found dead in the street about a quarter-block from the gas station, with six gunshot wounds to the back of his head and body. No gun was recovered from Pitts’s body, and the State’s occurrence witness testified that Pitts was unarmed.
Approximately 24 cartridge cases were recovered from various locations at the scene. Some were nine millimeter, some 10 millimeter, and some .25 caliber. Seven nine-millimeter cases were found near the victim’s body, along with two fired bullets, which were determined to be nine millimeter as well. The .25-caliber cases were fired from a handgun subsequently recovered by police which apparently belonged to defendant’s codefendant, David Jackson. Police did not recover a nine-millimeter gun or a 10-millimeter gun. However, the nine-millimeter cartridge cases found at the scene were all fired from the same nine-millimeter weapon, and the 10-millimeter cases were fired from the same 10-millimeter gun.
Defendant testified that he shot toward Pitts in self-defense, after seeing and hearing gunfire coming from Pitts’s direction. Defendant also testified that he saw gunfire coming from the van. Defendant denied trying to shoot Pitts.
Defense counsel argued self-defense and second degree murder, and the jury was instructed as to each of these defenses. The State urged the jury to reject self-defense and second degree murder, emphasizing that Pitts was unarmed — “[t]here was no weapon recovered from Christopher Pitts” — and that the only cartridge cases recovered from the scene were of the same caliber as the weapons used by defendant and his codefendants— nine millimeter, 10 millimeter, and .25 caliber.
The jury found defendant guilty of first degree murder (720 ILCS 5/9 — 1(a)(1) (West 2002)), aggravated discharge of a firearm (720 ILCS 5/24 — 1.2(a)(2) (West 2002)), and unlawful use of a weapon by a felon (720 ILCS 5/24 — 1.1(a) (West 2002)). On June 20, 2003, the circuit court sentenced defendant to 40 years’ imprisonment on the murder conviction, with an additional 20 years for personally discharging a firearm during the commission of the murder; 10 years’ imprisonment for aggravated discharge of a firearm, to be served consecutively to the murder sentence; and 5 years for unlawful use of a weapon, to be served concurrently; for an aggregate sentence of 70 years’ imprisonment.
On direct appeal, the appellate court affirmed defendant’s convictions and sentences. People v. Jackson, Nos. 1 — 03—2233, 1 — 03—3090, 1 — 03—3216 cons. (2005) (unpublished order under Supreme Court Rule 23). This court denied defendant’s petition for leave to appeal.
In January 2006 defendant filed a pro se petition for relief under the Act, along with a motion to proceed in forma pauperis and to appoint counsel. In his postconviction petition, defendant alleged that his trial counsel was ineffective for failing to produce evidence that would have supported his claim of self-defense. Specifically, defendant alleged, among other things, that counsel failed to investigate or interview three potential witnesses whose testimony would have corroborated defendant’s theory. Defendant alleged that two of these witnesses, Marquis Scales and Dontay Sanders, would have testified that on the night of the shooting, they arrived at the gas station in the same van as Pitts and knew that Pitts was armed with a gun. Defendant further stated that he told his trial counsel about a man he met named Michael Glasper who was at the gas station the night of the shooting, saw Pitts with a gun, and was willing to testify on defendant’s behalf. Defendant alleged that these witnesses would have corroborated his claim of self-defense, and he argued that, because of counsel’s incompetence, the jury “did not get a chance to hear any of this evidence.” According to defendant, if counsel had provided effective assistance, the verdict undoubtedly would have been different.
Defendant also alleged that trial counsel was aware that the police had actually recovered 45 to 50 shell casings from the scene — not just the 24 presented at trial— including casings from weapons of different calibers than those used by defendant and his codefendants. Defendant referred to an alleged police report signed by Detective Edward Cunningham which included this information. The report was not attached to defendant’s petition, but defendant explained the steps he took to obtain a copy. Defendant asserted that he spoke to a person in the medical examiner’s office who confirmed the existence of a report indicating .22- and .45-caliber casings had been recovered from the scene, but told him he would have to file a Freedom of Information Act request to get a copy, which he did. Defendant also spoke to his counsel on direct appeal, who contacted the medical examiner’s office but was told that documents could not be released without a court order or subpoena. Defendant filed a request for a court order to secure the report, which the circuit court denied.
Attached to defendant’s petition were the signed affidavits of Glasper, Scales and Sanders. Glasper’s affidavit stated that in July 2002, he and defendant were cell mates at the Cook County jail, where Glasper was being held on a charge of first degree murder. While Glasper and defendant were discussing their cases with each other, Glasper realized that he was familiar with the circumstances of defendant’s case. Glasper stated in his affidavit that he had been driving near the gas station the night of the shooting and heard gunshots. He drove to the scene, saw someone lying on the ground, parked his car in the gas station, walked toward a “small crowd” of people, and saw a bystander pick up a black handgun and “rush[ ] off.” Glasper stated that he agreed to testify on defendant’s behalf, but defense counsel never contacted him.
Scales stated in his affidavit that around 1 a.m. the night of the shooting he was in a van with Pitts and five companions.2 When the van stopped for gas, Pitts and two others got out of the van to buy something to drink. Minutes later, Scales heard gunshots and ducked down in his seat in the van as his friend “Ant” (Anthony Brown) drove the van out of the gas station. When they returned to the gas station to pick up their friends, Scales saw someone lying on the ground. Scales then saw a bystander pick up a black handgun from the area where the person was lying and walk away. Scales stated that he and “Ant” got out of the van and saw that it was Pitts lying on the ground, and Scales said, “that guy just took Christ’s] gun.” According to Scales, the police arrived “several minutes later.”
The content of Sanders’ affidavit was essentially the same as that of Scales, with one addition. Sanders stated that when Pitts got out of the van, he took his gun with him “because it was very late and [there’s] always something happening around in this area.”
The circuit court summarily dismissed defendant’s petition as frivolous and patently without merit, and the appellate court affirmed (No. 1 — 06—0902 (unpublished order under Supreme Court Rule 23)).
II. ANALYSIS
In this appeal, the parties dispute whether the circuit court should have summarily dismissed defendant’s post-conviction petition alleging ineffective assistance based on counsel’s failure, among other things, to investigate and present testimony from witnesses who would have corroborated defendant’s theory of defense. Our review of the circuit court’s dismissal of defendant’s postconviction petition is de novo. People v. Edwards, 197 Ill. 2d 239, 247 (2001); People v. Coleman, 183 Ill. 2d 366, 388-89 (1998); People v. Torres, 228 Ill. 2d 382, 394 (2008).
The Act provides a method by which persons under criminal sentence in this state can assert that their convictions were the result of a substantial denial of their rights under the United States Constitution or the Illinois Constitution or both. See 725 ILCS 5/122 — 1 et seq. (West 2006). Proceedings under the Act are commenced by the filing of a petition in the circuit court in which the original proceeding took place. People v. Rivera, 198 Ill. 2d 364, 368 (2001). Section 122 — 2 of the Act requires that a postconviction petition must, among other things, “clearly set forth the respects in which petitioner’s constitutional rights were violated.” 725 ILCS 5/122 — 2 (West 2006). With regard to this requirement, a defendant at the first stage need only present a limited amount of detail in the petition. People v. Delton, 227 Ill. 2d 247, 254 (2008); People v. Torres, 228 Ill. 2d 382, 394 (2008). Because most petitions are drafted at this stage by defendants with little legal knowledge or training, this court views the threshold for survival as low. Delton, 227 Ill. 2d at 254; Torres, 228 Ill. 2d at 394. In fact, we have required only that a pro se defendant allege enough facts to make out a claim that is arguably constitutional for purposes of invoking the Act. See People v. Porter, 122 Ill. 2d 64, 74 (1988) (stating that only a “gist” of a constitutional claim is needed at this stage). Thus, in our past decisions, when we have spoken of a “gist,” we meant only that the section 122 — 2 pleading requirements are met, even if the petition lacks formal legal arguments or citations to legal authority.
However, our recognition of a low threshold at this stage does not mean that a pro se petitioner is excused from providing any factual detail at all surrounding the alleged constitutional violation. Section 122 — 2 also provides that “[t]he petition shall have attached thereto affidavits, records, or other evidence supporting its allegations or shall state why the same are not attached.” 725 ILCS 5/122 — 2 (West 2006). The purpose of the “affidavits, records, or other evidence” requirement is to establish that a petition’s allegations are capable of objective or independent corroboration. Delton, 227 Ill. 2d at 254, citing People v. Hall, 217 Ill. 2d 324, 333 (2005), citing People v. Collins, 202 Ill. 2d 59, 67 (2002). “Thus, while a pro se petition is not expected to set forth a complete and detailed factual recitation, it must set forth some facts which can be corroborated and are objective in nature or contain some explanation as to why those facts are absent.” Delton, 227 Ill. 2d at 254-55.
A postconviction proceeding not involving the death penalty contains three distinct stages. Edwards, 197 Ill. 2d at 244; People v. Gaultney, 174 Ill. 2d 410, 418 (1996). At the first stage, the circuit court must, within 90 days of the petition’s filing, independently review the petition, taking the allegations as true, and determine whether “the petition is frivolous or is patently without merit.” Edwards, 197 Ill. 2d at 244; 725 ILCS 5/122—2.1(a)(2) (West 2006). If the court determines that the petition is either frivolous or patently without merit, the court must dismiss the petition in a written order. 725 ILCS 5/122— 2.1(a)(2) (West 2006). If the court does not dismiss the petition as frivolous or patently without merit, then the petition advances to the second stage, where counsel may be appointed to an indigent defendant (725 ILCS 5/122 — 4 (West 2006)) and where the State is allowed to file a motion to dismiss or an answer to the petition (725 ILCS 5/122 — 5 (West 2006)).3
As we explained, our use of the term “gist” describes what the defendant must allege at the first stage; it is not the legal standard used by the circuit court to evaluate the petition, under section 122 — 2.1 of the Act, which deals with summary dismissals. Under that section, the “gist” of the constitutional claim alleged by the defendant is to be viewed within the framework of the “frivolous or *** patently without merit” test. Section 122 — 2.1 provides, in pertinent part: “If the petitioner is sentenced to imprisonment and the court determines the petition is frivolous or is patently without merit, it shall dismiss the petition in a written order ***.” 725 ILCS 5/122— 2.1(a)(2) (West 2006). Thus, under the Act, a petition which is sufficient to avoid summary dismissal is simply one which is not frivolous or patently without merit.
Neither “frivolous” nor “patently without merit” is defined in the Act. This court attempted to define the standard for avoiding summary dismissal in People v. Boclair, 202 Ill. 2d 89, 101 (2002), where we cited Anders v. California, 386 U.S. 738, 18 L. Ed. 2d 493, 87 S. Ct. 1396 (1967), in defining “frivolous.” Under Anders, “legal points arguable on their merits” are “not frivolous.” Anders, 386 U.S. at 744, 18 L. Ed. 2d at 498, 87 S. Ct. at 1400. In keeping with this definition, we hold today that a pro se petition seeking postconviction relief under the Act for a denial of constitutional rights may be summarily dismissed as frivolous or patently without merit only if the petition has no arguable basis either in law or in fact. This definition has been used in Illinois in other contexts. See 735 ILCS 5/22 — 105(b) (West 2006) (defining frivolous pleading as one which “lacks an arguable basis either in law or in fact,” in statute providing that prisoner whose postconviction petition is specifically found by a court to be frivolous is responsible for filing fees and actual court costs); 155 Ill. 2d R. 137 (providing for sanctions aimed at deterring frivolous suits or pleadings “without any basis in law” (Pole Realty Co. v. Sorrells, 84 Ill. 2d 178, 184 (1981) (stating purpose of statutory precursor of Rule 137))); 155 Ill. 2d R. 375(b) (defining frivolous appeal as one which is “not reasonably well grounded in fact and not warranted by existing law” or good-faith argument for “modification *** of existing law”).
Moreover, this definition of the phrase “frivolous or patently without merit” is supported by case law from the federal courts in the area of habeas corpus, which provides collateral relief similar to that under the Act. We note that this court has in the past relied on habeas case law in interpreting and applying the Act. See, e.g., People v. Flores, 153 Ill. 2d 264, 278-79 (1992) (relying on McCleskey v. Zant, 499 U.S. 467, 113 L. Ed. 2d 517, 111 S. Ct. 1454 (1991), a federal habeas case, in defining relevant terms in the “cause and prejudice” test for filing successive postconviction petitions). Our reliance on such case law is particularly apt in this instance because the General Assembly patterned section 122 — 2.1 of the Act after the federal in forma pauperis statute, 28 U.S.C. §1915. See 83d Ill. Gen. Assem., House Proceedings, June 21, 1983, at 93 (statements of Representative McCracken) (“It’s important to note that this is patterned after a federal law and is consistent with that practice, 28 U.S.C., 1915”).
We note that certain federal provisions, including the in forma pauperis statute, authorize the dismissal of actions seeking federal habeas corpus relief as frivolous. The in forma pauperis statute, which allows habeas litigants, among others, to proceed in forma pauperis if they meet certain requirements (see Neitzke v. Williams, 490 U.S. 319, 324, 104 L. Ed. 2d 338, 346, 109 S. Ct. 1827, 1831 (1989)), provides, similar to section 122 — 2.1(a)(2) of the Act, that “the court shall dismiss the case at any time if the court determines that *** the action or appeal *** is frivolous or malicious *** [or] fails to state a claim on which relief may be granted” (28 U.S.C. §1915(e)(2) (2006)). Because section 1915 did not define “frivolous,” the federal courts were left with the task of “[articulating [its] proper contours.” Neitzke, 490 U.S. at 324-25, 104 L. Ed. 2d at 346-47, 109 S. Ct. at 1831.
The United States Supreme Court has defined a frivolous claim in the section 1915 context as one which “lacks an arguable basis either in law or in fact.” Neitzke, 490 U.S. at 325, 104 L. Ed. 2d at 347, 109 S. Ct. at 1831-32.4 According to the Court, such claims include those “based on an indisputably meritless legal theory” as well as claims “whose factual contentions are clearly baseless,” e.g., “claims describing fantastic or delusional scenarios.” Neitzke, 490 U.S. at 327-28, 104 L. Ed. 2d at 348, 109 S. Ct. at 1833.5
Moreover, an action seeking federal habeas relief may be dismissed as frivolous under Rule 4 of the Rules Governing Section 2254 Cases in the United States District Courts (Habeas Rules). Under Habeas Rule 4, as under the Act (see Gaultney, 174 Ill. 2d at 418; 725 ILCS 5/122 — 5 (West 2006)), summary dismissal occurs prior to requiring a response from the State.6
The Advisory Committee Note to Habeas Rule 4 states, in relevant part:
“It has been suggested that an answer should be required in every habeas proceeding, taking into account the usual petitioner’s lack of legal expertise ***. However, *** it is the duty of the court to screen out frivolous applications and eliminate the burden that would be placed on the respondent by ordering an unnecessary answer.” Habeas Rule 4, Advisory Committee Note.
A year after the adoption of the relevant Advisory Committee Note, the United States Supreme Court, in Blackledge v. Allison, 431 U.S. 63, 52 L. Ed. 2d 136, 97 S. Ct. 1621 (1977), employed the term “frivolous” in describing the standard which must be met for summary dismissal under Habeas Rule 4. According to the Court, the “critical question” is whether the petition’s allegations, when viewed against the record, are “so ‘palpably incredible,’ [citation] so ‘patently frivolous or false,’ [citation] as to warrant summary dismissal.” Blackledge, 431 U.S. at 76, 52 L. Ed. 2d at 148, 97 S. Ct. at 1630.
The Second Circuit Court of Appeals further explained the standard for summary dismissal under Habeas Rule 4. Cuadra v. Sullivan, 837 F.2d 56 (2d Cir. 1988). In that case, the defendant’s pro se petition, which was summarily dismissed by the district court, alleged, among other things, ineffective assistance of counsel. The court of appeals noted that under Rule 4, summary dismissal is appropriate only when the petition is frivolous. Cuadra, 837 F.2d at 58. The court held: “A legal point that is arguable on its merits is by definition not frivolous.” Cuadra, 837 F.2d at 58, citing Anders, 386 U.S. at 744, 18 L. Ed. 2d at 498, 87 S. Ct. at 1400. The court of appeals noted that Rule 4 “does not contemplate that the court will, without requiring a response from the custodian or otherwise ordering some supplementation of the record, decide a petition on its merits when there is any constitutional claim that, given the facts summarized in the petition, is arguable on its merits.” Cuadra, 837 F.2d at 58. Thus, “summary dismissal of a habeas petition prior to requiring a response is appropriate only where the petition indicates ‘that petitioner can prove no set of facts to support a claim entitling him to relief.’ ” Cuadra, 837 F.2d at 58, quoting Williams v. Kullman, 722 F.2d 1048, 1050 (2d Cir. 1983). Accord O’Blasney v. Solem, 774 F.2d 925, 926 (8th Cir. 1985) (“If the petition is not frivolous and alleges facts which, even though unlikely, would justify granting the writ, then the petitioner is entitled to have his allegations fairly tested”).7
In keeping with these federal decisions interpreting “frivolous” in the habeas corpus context, we conclude, as noted, that a pro se petition seeking postconviction relief under the Act may be summarily dismissed as “frivolous or *** patently without merit” pursuant to section 122— 2.1(a)(2) only if the petition has no arguable basis either in law or in fact. A petition which lacks an arguable basis either in law or in fact is one which is based on an indisputably meritless legal theory or a fanciful factual allegation. An example of an indisputably meritless legal theory is one which is completely contradicted by the record. See, e.g., People v. Robinson, 217 Ill. 2d 43 (2005) (rejecting claim that appellate counsel was ineffective for failing to argue on direct appeal that out-of-court identification of defendant was inadmissible hearsay, where record showed that the statement at issue fell within the hearsay exception for spontaneous declarations). Fanciful factual allegations include those which are fantastic or delusional.
We turn our attention to defendant’s petition in the case at bar, to determine if the circuit court correctly dismissed it as frivolous and patently without merit. The question before us is whether defendant’s petition had no arguable basis either in law or in fact, i.e., whether it was based on an indisputably meritless legal theory or a fanciful factual allegation.
In answering this question, we are guided by the standard set forth in Strickland v. Washington, 466 U.S. 668, 80 L. Ed. 2d 674, 104 S. Ct. 2052 (1984), for determining whether counsel’s assistance was ineffective. To prevail on a claim of ineffective assistance under Strickland, a defendant must show both that counsel’s performance “fell below an objective standard of reasonableness” and that the deficient performance prejudiced the defense. Strickland, 466 U.S. at 687-88, 80 L. Ed. 2d at 693, 104 S. Ct. at 2064. At the first stage of postconviction proceedings under the Act, a petition alleging ineffective assistance may not be summarily dismissed if (i) it is arguable that counsel’s performance fell below an objective standard of reasonableness and (ii) it is arguable that the defendant was prejudiced.
A. Factual Basis
In the case at bar, we cannot say that defendant’s petition failed to set forth sufficient facts to establish a constitutional violation for purposes of invoking the Act. With regard to the requirement that the petition “clearly set forth the respects in which petitioner’s constitutional rights were violated,” defendant alleged that he was denied his sixth amendment right to effective assistance of counsel when counsel failed, inter alia, to investigate and present testimony from three witnesses who would have supported defendant’s theory of defense. The petition identified each of the three witnesses and summarized the testimony they would give. Defendant alleged, for example, that one of the witnesses, Michael Glasper, told defendant in 2002 that he was at the gas station the night of the shooting and “actually saw the decease[d] with a weapon.” Defendant further alleged that he told his counsel of this conversation, and that Glasper was willing to testify on defendant’s behalf, but counsel “didn’t even pursue petitioner[’]s assertions prior to trial.” Defendant provided similar summaries of Scales’ and Sanders’ potential testimony. According to defendant’s allegations, Scales and Sanders would have testified that they arrived at the gas station in the same van as Pitts and knew Pitts was armed with a gun. Sanders allegedly would have testified, in addition, that Pitts had his gun with him when he got out of the van. Defendant stated: “Petitioner’s jury did not get a chance to hear any of this evidence, due to trial counsel!”]s incompetence, and this can not be held as trial strategy when trial counsel stated a self-defense case.”
Defendant’s petition also satisfied the corroboration requirements of section 122 — 2. Attached to the petition were the signed affidavits of the three potential witnesses. The affidavits recounted, in some detail, the testimony each witness would have offered, thus providing independent corroboration of the relevant allegations in defendant’s petition. Cf. Delton, 227 Ill. 2d at 252-53, 258 (affirming summary dismissal where petition alleged counsel was ineffective for failure to investigate all possible witnesses, but failed to identify any witnesses and failed to submit any affidavits indicating what potential witnesses’ testimony would be).
While defendant’s allegations regarding Glasper might appear somewhat unlikely, none of the allegations regarding any of the three witnesses could be described as fantastic or delusional. Indeed, the allegation that Scales was in the van with Pitts the night of the shooting is supported by the testimony of the State’s occurrence witness, James Wilson, who also was in the van with Pitts. Moreover, a belief that allegations are unlikely, without more, is insufficient to justify dismissing a petition. See Denton, 504 U.S. at 33, 118 L. Ed. 2d at 350, 112 S. Ct. at 1733-34. In this instance, we cannot conclude that, with regard to the allegations concerning the three witnesses, defendant’s petition lacked an arguable basis in fact.
B. Legal Basis
The next question is whether defendant’s legal theory that counsel was ineffective for failing to interview and present testimony from these witnesses was itself indisputably meritless. This question focuses on defendant’s theory of defense at trial and whether the three witnesses’ alleged testimony arguably would have supported this theory.
Defendant’s theory of defense at trial was twofold. Counsel argued that defendant fired toward Pitts in self-defense, reasonably believing that his life was in danger, and defendant therefore should be acquitted of first degree murder. In the alternative, counsel argued that, if defendant’s belief that his life was in danger was found to be unreasonable, the verdict should be second degree murder. Over the State’s objection, the trial court determined there was sufficient evidence to warrant instructing the jury on self-defense and on second degree murder based on an actual but unreasonable belief the use of force was justified. The jury was instructed as to each of these defenses.
On appeal from the summary dismissal of defendant’s postconviction petition, the appellate court held, inter alia, that even if Glasper, Scales and Sanders had testified, their testimony would not have supported the theory that defendant acted in self-defense. The appellate court did not address whether this testimony would have supported a theory of “unreasonable belief’ second degree murder.
With regard to defendant’s theory of self-defense, the appellate court explained that, in order to prove that he was acting in self-defense, defendant was required to establish evidence of several factors, including that he was not the aggressor. See People v. Morgan, 187 Ill. 2d 500, 533 (1999). The appellate court noted, inter alia, that “all six of the gunshot entry wounds were to the back of Pitts’ body.” No. 1 — 06—0902 (unpublished order under Supreme Court Rule 23). According to the appellate court, even if the jury had heard the testimony of the three witnesses, the evidence nevertheless would have demonstrated that defendant was the aggressor against Pitts and did not act in self-defense.
We agree with the appellate court that the testimony of the three witnesses would not have supported defendant’s theory of self-defense. This is an instance where, with regard to the theory of self-defense, the legal theory that counsel was ineffective for failing to investigate the three witnesses was completely contradicted by the record.
However, we do not reach the same conclusion regarding “unreasonable belief’ second degree murder. As part of the jury instruction on second degree murder, the jury was instructed not to convict defendant of first degree murder if it found, by a preponderance of the evidence, that defendant, at the time of the killing, believed circumstances existed which would justify the deadly force he used, but this belief was unreasonable. In our view, it is at least arguable that testimony from three witnesses indicating Pitts was armed the night of the shooting would have supported a theory that defendant believed, albeit unreasonably, that his actions were justifiable.
As noted, the appellate court did not address whether the three witnesses’ testimony would have supported a theory of second degree murder. According to the State, the reason the appellate court addressed only self-defense and not second degree murder is that, in his petition, defendant focused only on the impact the witnesses’ testimony would have had on self-defense. Defendant did not expressly allege that this same testimony would have supported “unreasonable belief” second degree murder, which, we note, has been referred to as “imperfect self-defense” (People v. Jeffries, 164 Ill. 2d 104, 113-14 (1995)). In the State’s view, defendant, who was acting pro se, “chose” to focus only on self-defense and not on second degree murder as well, and he should be held to that choice. We reject this argument. The State’s strict construction of defendant’s petition is inconsistent with the requirement that a pro se petition be given a liberal construction. Where defendants are acting pro se, courts should review their petitions “with a lenient eye, allowing borderline cases to proceed.” Williams, 722 F.2d at 1050. In the case at bar, the issue of whether defendant’s pro se petition, which focused on self-defense, could be said to have included allegations regarding “unreasonable belief’ second degree murder — i.e., imperfect self-defense — is at minimum the type of “borderline” question which, under a liberal construction, should be answered in defendant’s favor.
Having concluded that the three witnesses’ testimony arguably would have supported defendant’s theory of “unreasonable belief’ second degree murder, we turn to whether defendant’s legal theory that counsel was ineffective for failing to interview and present testimony from these witnesses was nevertheless meritless. We answer this question in the negative.
In our view, it must be regarded as at least arguable that counsel’s failure in this respect “fell below an objective standard of reasonableness” and prejudiced the defense. See Strickland, 466 U.S. at 687-88, 80 L. Ed. 2d at 693, 104 S. Ct. at 2064. Accordingly, with regard to counsel’s failure to investigate and interview the three witnesses, defendant’s legal theory of ineffective assistance was not indisputably meritless.
Defendant’s petition did not lack an arguable basis either in law or in fact and it should not have been dismissed as frivolous and patently without merit.8
The partial dissent argues that defendant cannot establish either of the statutory exceptions under which an aggressor may claim “unreasonable belief” second degree murder as a defense. On this basis, the dissent contends that defendant’s petition was properly dismissed as frivolous. The dissent’s argument, which deals in some detail with the specific statutory provisions involved, is more appropriate to the second stage of postconviction proceedings, where the State would have the opportunity to advance it. See 725 ILCS 5/122 — 5 (West 2006). Whatever else the “arguable basis” standard might require of a pro se petition at the first stage, it does not require the degree of specificity in allegations regarding legal arguments and authority which the dissent apparently contemplates.
We express no opinion at this stage as to whether defendant will ultimately be able to prevail on his ineffective-assistance claim. Such a decision on the merits, prior to allowing the State to file responsive pleadings, would be inappropriate where, as here, defendant’s claim of a constitutional violation is arguable on its merits. See Cuadra, 837 F.2d at 58; see also Edwards, 197 Ill. 2d at 246-47 (decision as to whether defendant has made a “substantial showing of a constitutional violation” is inappropriate at first stage of post-conviction proceeding).
III. CONCLUSION
We reverse the appellate court’s judgment affirming the circuit court’s summary dismissal of defendant’s petition for postconviction relief as frivolous and patently without merit. The cause is remanded to the circuit court with directions that defendant’s request for appointment of counsel be granted and the matter be advanced to the second stage of postconviction proceedings.
Reversed and remanded with directions.