OPINION ANNOUNCING THE JUDGMENT OF THE COURT
NIX, Chief Justice.The subject of this discretionary appeal raised by the Commonwealth1 is the Superior Court’s order reversing the *205lower court’s disapproval of a private criminal complaint and directing that such a complaint be authorized pursuant to Pa.R.Crim.P. 133. The fundamental issue presented in this appeal is whether a decision not to prosecute on the ground of lack of evidence to establish a prima facie case, made by the office of the district attorney and confirmed by a judge of the court of common pleas, is reviewable by the Superior Court. The Commonwealth’s framing of the issue has tended to obfuscate the relatively straight-forward question legitimately raised. Additionally, the Commonwealth has attempted to implicate constitutional principles and principles of law not presently germane to the instant inquiry. For the reasons that follow, we conclude that the Superior Court did have jurisdiction to hear the appeal pursuant to 42 Pa.C.S. § 742.2 Moreover, that court correctly concluded that there was sufficient evidence to establish a prima facie case. Therefore, we affirm the order of the Superior Court.
This case arose out of an altercation between Paaron Jones and Officer Joseph E. Benz of the Pittsburgh Police Department. On June 29, 1981, both men were in the West Penn Memorial Hospital to visit patients. While still in the lobby, Officer Benz, who was not in uniform, entered the elevator with packages for his ailing wife. Paaron Jones approached the elevator to speak with another passenger whom he knew. At the time Mr. Jones was on crutches with a broken leg in a cast and smelled of alcohol. He held the elevator door open with one of the crutches and continued to converse with the passenger on the elevator. After some delay of the elevator an argument began between Jones and Benz, resulting in Jones striking Benz with his *206crutch. After Benz had retrieved his packages and entered a second elevator, Jones again struck Benz, sending him to the floor. While Benz was still on the floor, Jones struck him across the back with a crutch. Realizing that the altercation was getting out of control, Benz pulled out his badge and firearm and identified himself as a police officer. At that time Jones attempted to flee through the front exit and Benz pursued him with his firearm drawn, stating that he was under arrest and he should lie face down on the floor. Instead, a scuffle again resulted. This time, however, Benz had his gun exposed. During the fight the gun discharged and Jones was struck in the head with the bullet. The emergency unit was able to save Jones only for him to live in a vegetative state for four years until July 25, 1985, when he died as a result of the gunshot wound.
After Jones’s death an open inquest was conducted by the coroner, and the coroner’s jury recommended that Benz be charged with voluntary manslaughter. Nevertheless, the District Attorney of Allegheny County did not file charges. The District Attorney decided that the eye-witness testimony was so disjointed as to make it inconclusive and instead relied on medical evidence of possible powder burns on the victim’s head and scientific evidence concerning the retention of the shell of the bullet in the chamber of the gun. That evidence seemed to indicate that the victim was in close proximity to Benz when the gun discharged. That conclusion supported the claims made by Benz that the two men were wrestling over the weapon and that the shot was fired accidentally.
In September of 1985 the District Attorney’s office sought review of its decision from the Office of the Attorney General. The District Attorney’s office turned over all its files concerning the matter and fully cooperated with the investigation by the Attorney General. In February of 1986 that office concluded that no abuse of prosecutorial discretion had occurred; that a fair investigation had been conducted by that office; and that the filing of criminal *207charges in this matter would have been inappropriate and unsupported by the available evidence.
On May 21, 1986 Laverda Hicks, the mother of the victim, then sought approval of a private criminal complaint pursuant to Pa.R.Crim.P. 133. That rule states:
(a) When the affiant is not a law enforcement officer and the offense(s) charged include(s) a misdemeanor or felony which does not involve a clear and present danger to any person or to the community, the complaint shall be submitted to an attorney for the Commonwealth, who shall approve or disapprove without unreasonable delay.
(b) If the attorney for the Commonwealth
(1) Approves the complaint, the attorney shall indicate this decision on the complaint form and transmit it to the issuing authority;
(2) Disapproves the complaint, the attorney shall state the reasons on the complaint form and return it to the affiant. Thereafter the affiant may file the complaint with a judge of a Court of Common Pleas for approval or disapproval;
(3) Does not approve or disapprove within a reasonable period of time, the affiant may file the complaint on a separate form with the issuing authority, noting thereon that a complaint is pending before an attorney for the Commonwealth. The issuing authority shall determine whether a reasonable period has elapsed, and, when appropriate, shall defer action to allow the attorney for the Commonwealth an additional period of time to respond.
The District Attorney disapproved the complaint on the grounds that insufficient evidence existed to establish that a crime had been committed. Subsequently, Ms. Hicks sought judicial review of the matter. The court of common pleas accepted the petition but denied approval after a review of the record. It held that the district attorney did *208not abuse his discretion by not prosecuting Benz.3 Ms. Hicks appealed to the Superior Court for a review of the final order of the court of common pleas pursuant to 42 Pa.C.S. § 742 and Pa.R.A.P. 1112. The Superior Court reversed the lower court and determined that evidence was available to establish a prima facie case.
In this case, the Commonwealth stated as its reason for the decision not to prosecute the lack of evidence sufficient to establish a prima facie case4 Therefore, a court is required to review the appropriateness of that determination. It has always been the burden of the Commonwealth, if it intends to proceed with prosecution, to establish a prima facie case that a crime has been committed and that the accused is the one who committed it. Commonwealth v. Mullen, 460 Pa. 336, 333 A.2d 755 (1975); see also, Commonwealth v. Ruza, 511 Pa. 59, 511 A.2d 808 (1986); Commonwealth v. Wojdak, 502 Pa. 359, 466 A.2d 991 (1983). Traditionally, the final determination of sufficiency of the evidence has been a judicial judgment. Rice v. Shuman, 513 Pa. 204, 519 A.2d 391 (1986); Commonwealth v. Shaver, 501 Pa. 167, 460 A.2d 742 (1983). This is to be distinguished from the prosecutorial discretion not to bring prosecution even if a prima facie case may be established from the evidence available. See, e.g., Pugach v. Klein, 193 F.Supp. 630 (S.D.New York 1961).
The evidence in this instance unquestionably established a homicide.5 It is also unquestioned that the person *209responsible for the death of Paaron Jones was Officer Benz. Whether the homicide was justifiable or excusable is a matter of defense. Commonwealth v. Capitolo, 508 Pa. 372, 498 A.2d 806 (1985); 18 Pa.C.S. § 503. Thus, evidence as to justification or excuse would not negate a determination of a prima facie case, but is a matter that is properly raised in defense at trial. See, e.g., Commonwealth v. Reilly, 519 Pa. 550, 549 A.2d 503 (1988); Commonwealth v. Warren, 475 Pa. 31, 379 A.2d 561 (1977). Therefore, with sufficient evidence to establish a prima facie case, the Superior Court correctly reversed the lower court’s holding that the district attorney’s decision not to prosecute Officer Benz was proper for the reason stated.
The Commonwealth seeks to raise the question of the constitutional principle of separation of powers in this instance by asserting that judicial intervention impermissibly trammelled upon the prosecutorial discretion. The fallacy of this argument is its lack of relevancy.6 The prosecutor in this instance never purported to predicate his decision not to prosecute upon the exercise of his prosecutorial discretion to make policy. He expressly stated that the decision to decline prosecution resulted from his determination that the evidence would not sustain a prima facie case. Thus the issue before both lower courts required an assessment of that legal judgment and not an intrusion upon prosecuto*210rial discretion.. Had the district attorney utilized policy discretion to refuse prosecution and had the lower courts reviewed that decision, the question of separation of powers would have been appropriately raised. However, we need not stray from the issues properly presented to decide this case.
In this case, the prosecutorial decision not to prosecute was based upon a legal determination of the sufficiency of the evidence to establish a prima facie case. This type of decision is within the purview of the judicial system to review. The Superior Court found that sufficient evidence existed to sustain a prima facie case7 and ordered that the district attorney’s office commence prosecution.8
Accordingly, we affirm the Order of the court.
LARSEN, J., files a concurring opinion. PAPADAKOS, J., files a dissenting opinion in which McDermott, j.., joins. LARSEN, Justice,. The caption to this case is misleading because, although the Commonwealth is the appellant, Joseph E. Benz, who is listed as the appellee, is not a party to this case and has not filed a brief. The true *205appellee in this case is the private complainant, Laverda Hicks, the mother of the decedent.
. § 742. Appeals from courts of common pleas
The Superior Court shall have exclusive appellate jurisdiction of all appeals from final orders of the courts of common pleas, regardless of the nature of the controversy or the amount involved, except such classes of appeals as are by any provision of this chapter within the exclusive jurisdiction of the Supreme Court or the Commonwealth Court.
. The trial court found that the “eye-witness” testimony was inconclusive, and therefore the District Attorney was correct to rely upon the scientific evidence. The scientific evidence, to which the trial court refers as supporting the District Attorney’s disapproval of the private complaint, is the report from the state police laboratory regarding the "retained cartridge theory”.
. If the district attorney had stated policy reasons to support the decision not to prosecute, this Court would show the deference accorded to such a discretionary use of the executive powers conferred in that officer. However, because the reason stated was the ultimate determination by the district attorney that no crime had been committed, this Court is authorized to review that determination without the special deference afforded a separate branch of government.
. Homicide is defined in 18 Pa.C.S. § 2501 as follows:
*209(a) Offense defined — A person is guilty of criminal homicide if he intentionally, knowingly, recklessly or negligently causes the death of another human being.
It also has been stated that a homicide may be lawful or unlawful. “A lawful homicide is either justifiable or excusable. A homicide which is neither justifiable nor excusable is unlawful.” See, e.g., Wharton’s Criminal Law §§ 112-151 (14th ed. 1979).
. It also should be noted that the Commonwealth is not claiming the impropriety of any judicial review of the decision not to prosecute. Instead, the Commonwealth concedes the authority of the trial judge to review that decision, but argues that appellate review of the court of common pleas’ decision is violative of the separation of powers principle. But see, In Re Wood, 333 Pa.Super. 597, 482 A.2d 1033 (1984); Commonwealth v. Eisemann, 276 Pa.Super. 543, 419 A.2d 591 (1980). Such an argument would allow a judicial inquiry into the decision of the district attorney without providing for a mechanism to correct any improper assessment of that decision.
. The district attorney in this case elected to impanel a coroner’s inquest to aid in the investigation of the incident, and that jury recommended that Officer Benz be charged with voluntary manslaughter. While this is not binding on the prosecutor, it is significant that this panel determine the existence of evidence that would support a prima facie case.
. It is to be noted that neither of the parties has questioned the applicability of the procedure provided for under Rule 133 to the instant facts. Rule 133(a) provides in pertinent part, "... and the offense(s) charged include(s) a misdemeanor or felony which does not involve a clear and present danger to any person or to the community,----” In this case the alleged criminal charge was a homicide. Notwithstanding, the objection would have been a procedural one, not implicating subject matter jurisdiction, thus waivable if not properly raised. Commonwealth v. Capitolo, 508 Pa. 372, 498 A.2d 806 (1985). As stated, this objection was not raised and, accordingly, the issue is waived.