OPINION
Before NESBETT, C. J., and DIMOND and RABINOWITZ, JJ. NESBETT, Chief Justice.The question is whether this court may review a criminal sentence for abuse of discretion.
Appellant was indicted for the first degree murder of his wife and found guilty of involuntary manslaughter by a jury. The trial court sentenced him to twelve years imprisonment and recommended that he not be considered for parole until he had served a minimum of one-third of the sentence. Appellant’s motion for reduction of sentence was denied.
Appellant does not question the validity of his conviction nor the fact that the sentence was within the maximum established by law for the offense. He requests only that “This court * * * vacate the sentence imposed and remand the matter back to a' different Superior Court Judge for resentencing,” or modify the sentence.
In support of his request appellant urges, that a statement made by the court at the time it denied the motion to reduce sentence clearly demonstrates that it disregarded the jury’s finding that the killing was unintentional and viewed it instead as an intentional killing and sentenced accordingly. Appellant quotes and emphasizes the statement of the trial judge, who is reported to have said:
I considered this a very vicious case; the jury found manslaughter * * *. They found him guilty of manslaughter and certainly the evidence indicated that he had this 'pistol; he fired into the floor one time and during the course of punching his wife in the ribs with the pistol it went off; and I think it was a very vicious type of thing.
Appellant argues that the court clearly displayed its prejudice when it referred to what the jury had found to be an involuntary act of manslaughter as a vicious killing. According to appellant, the trial court’s prejudice was caused by incompetent hearsay- statements made by the prosecutor at the time of sentencing to the effect that appellant had threatened to kill two of the State’s witnesses after trial.
Appellee contends that the court obviously did not consider the prosecutor’s statement that appellant had threatened two witnesses. Appellant denied making the statement, according to appellee, whereupon the prosecutor offered to support his statement with affidavits. The court is then reported to have stated, when it denied the prosecutor’s offer, that it had heard all that it wished to on that point. According to appellee, the above facts clearly support the inference that the court, did not consider the statement, otherwise it would have accepted the prosecutor’s *434offer to prove the threats and would have referred to them when passing’sentence.
Appellee argues that the trial court’s characterization of the offense as “vicious” and its statement that it could not “give the man a license to kill his wife” were comments appropriate to the nature of the offense.
Appellee points out that most of the dictionary definitions of the adjective “vicious” such as, “violative of moral rectitude”, “immorality or depravity” and “corrupt or dissolute in" conduct”, do appropriately describe the unintentional homicide under the particular facts of this case. The trial judge concluded his statement by saying:
I don’t think we could give a man a license to kill his' wife because he has children and he has to look after the children. I don’t go along with that argument.
According to appellee, this is nothing more than an explanation by the court that it could not excuse appellant’s conduct merely because of his responsibility to his children, and in brief, there is no support for the argument of appellant that the judge considered the homicide other than involuntary manslaughter.
We shall defer consideration of appellant’s claim that the facts related amounted to an abuse of discretion and examine first the question of whether this court has jurisdiction to review a legal criminal sentence.
The majority of federal jurisdictions follow the rule that an appellate court has no authority to act on a sentence which is within the limits allowed by a statute, because such a sentence is not cruel and unusual punishment and any relief therefrom must be obtained by act of Congress.1 The same rule appears to be followed in a majority of the state jurisdictions on the ground that it would be improper to interfere, or to seem to interfere, with the executive branch’s power to pardon and commute sentences.2
According to Professor B. J. George, the rule of the state courts is a carry-over from the common law where, in feudal times, the chief variations in punishments lay more in the methods by which an offender was to be executed than in any other respect; the role of the judiciary being to determine the question of guilt and to enter judgment. When this had been done the penalties of the law were exacted as a matter of course, unless royal pardon was forthcoming. Professor George suggests that immunity of criminal sentences from review is also explainable by the fact that under the common law system, appeals are based on questions of law exclusively whereas under the civil law, appeals may be based on questions of law or fact.3
States which review sentences in criminal cases, such as Arizona, California, New York, Nebraska, Iowa and Hawaii, generally do so under statutory authority.4
*435A few states have inferred the power to review and reduce sentences from statutes which permit appellate courts to “reverse or modify the judgment” appealed from,5 but none have found in this language the power to increase a sentence.
In United States v. Rosenberg6 the United States Court of Appeals for the Second Circuit commented as follows:
Some * * * state courts find * * * authority in statutes conferring power to “reverse, modify or affirm” judgments on appeal. An identical power — to “affirm, modify * * *' or reverse” — is given to federal courts of appeal and to the Supreme Court by 28 U.S.C.A. § 2106. * * * No decision by the Supreme Court or any federal court of appeals seems to have cited or considered this statute irr passing on the question of the power to reduce a sentence when a conviction is affirmed.
This court is of the opinion that it does not have jurisdiction to review and remand or to review and revise a criminal sentence for abuse of discretion.
There is no provision of the constitution or of the statutes of Alaska spec-cifically giving this court the power to “reverse, affirm or modify the judgment”. Article IV, section 2 of the Alaska Constitution states that, “The supreme court shall be the highest court of the State, with final appellate jurisdiction.” AS 22.05.010 states in part that:
The supreme court has final appellate jurisdiction in all actions and proceedings. The supreme court may issue injunctions * * * and all other writs necessary or proper to the complete exercise of its jurisdiction.
and AS 22.05.020 states in part:
The supreme court is vested with all power and authority necessary to carry into complete execution all its judgments, decrees and determinations in all matters within its jurisdiction, according to the constitution, the laws of the state, and the common law.7
Under the above powers this court has regularly reversed and remanded judgments. On occasion it has modified civil judgments, but with a single known exception it has not modified a criminal judgment.8
*436Our decision is influenced to some extent by the history of the doctrine of immunity of review of criminal sentences ■and by the absence of specific constitutional or statutory authority in this area.
It is true that this court has exercised ■appellate authority to review the many aspects of criminal matters mentioned in our colleague’s dissenting opinion. For the •most part such review is confined to questions of law or mixed questions of law and fact and is therefore within the traditionally recognized sphere of appellate •court jurisdiction. The review of an otherwise legal criminal sentence, which is within the maximum established by the legislature, is not a question of law and is not within the traditional sphere of appellate court jurisdiction.
As is pointed out in the dissent, approximately fifteen states now undertake to review criminal sentences. In thirteen •of these states the authority to review •criminal sentences stems from specific ■statutory provisions.
The legislature of Alaska has established by statute the maximum and minimum sentences for each offense. The •determination of the exact period of time that a convicted defendant should serve is basically a sociological problem to be resolved by a careful weighing of the principle of reformation and the need for protecting the public.9 The trial judge, by reason of his personal observation of the defendant and the complete personal history report prepared for him by the probation officer, is expected to be prepared to impose sentence.
The trial judge’s sentence is subject, however, to the following overriding statutory provisions:
(1) that the State Board of Parole may, if its investigation and the defendant’s rehabilitation prognosis appears to warrant, release the defendant on parole after only a portion of the sentence has been served ;10
(2) that by statute the defendant is entitled to three to fifteen days per month reduction of sentence for good behavior and prison camp activity,11 and
(3) that the defendant may be granted a commutation of sentence or a pardon by the governor.12
The chairman of the State Board of Parole is required by statute to be an official in the Department of Health and Welfare with training in the field of probation and parole.13 This Board, through its continued reports on the prisoner’s conduct, psychological outlook and rehabilitation prognosis, is intended to be suited to exercise the authority imposed in it by the legislature to adjust downward the prisoner’s sentence within the limits allowed by statute.
The foregoing serves to illustrate that the legislature of Alaska has assumed and now exercises a substantial control over the length of criminal sentences. It may perhaps be advisable that this control be extended so as to place the responsibility for establishing the initial sentence, as *437well as the ultimate sentence to be served, in a board composed of persons trained in the social sciences appropriate to the responsibility. Appellate judges do not have an expertise, because of training, experience or otherwise, that qualifies them to be reviewers of criminal sentences.
It is the view of this court that review of legal criminal sentences should be provided for by statute only after a careful study of the efficacy of reviewing techniques now in force in other jurisdictions has been made, and the need for the procedure determined. Reviewing authority should perhaps include the power to modify a sentence upward as well as downward in order to achieve the full advantage of the procedure and decrease or eliminate disparity in sentences.14
In view of our decision herein it becomes unnecessary to consider the question of abuse of discretion.
The judgment below is affirmed.15
. Smith v. United States, 273 F.2d 462, 467-68 (10th Cir. 1959) ; Bryson v. United States, 265 F.2d 9, 14 (9th Cir. 1959).
. Raullerson v. People, 157 Colo. 462, 404 P.2d 149, 158 (1965) ; State v. Bass, 242 S.C. 193, 130 S.E.2d 481, 483-484 (1963).
. B. J. George, An Unsolved Problem: Comparative Sentencing Techniques, 45 A.B.A.J. 250, 252 (1959). Professor George notes that since 1907 in England a convicted person may, by leave of the Court of Criminal Appeal, appeal his sentence unless it is one fixed by law. On appeal the sentence may be revised upward or downward.
. See State v. Valenzuela, 98 Ariz. 189, 403 P.2d 286, 289 (1965) where the court said:
This Court has been given the power to modify the sentence imposed by the lower court * * *. A.B.S. § 13-1717 (1956) provides in pertinent part: “B. Upon an appeal * * * from the sentence on the ground that it is excessive, the court shall have the power to reduce the extent or duration of the punishment imposed, if, in its opinion, the conviction is proper, but the punishment .imposed is greater than under the circumstances of the case ought to be inflicted.”
. Blake v. State, 186 Ark. 77, 52 S.W.2d 644, 646 (1932) ; State v. Ramirez, 34 Idaho 623, 203 P. 279, 282, 29 A.L.R. 297 (1921); Hooper v. State, 7 Okl. Crim. 43, 121 P. 1087, 1088 (1912) ; Commonwealth v. Garramone, 307 Pa. 507, 161 A. 733, 735, 89 A.L.R. 291 (1932) ; In Thompson v. State, 192 Tenn. 298, 241 S.W.2d 404, 405 (1951), it was held that the appellate court's general power to supervise the trial courts permitted it to revise a sentence of imprisonment fixed by a judge but not by a jury.
Recent cases from Arkansas indicate that this state now holds that the court on appeal has no authority to reduce a sentence that is within statutory limits. Osborne v. State, 237 Ark. 5, 371 S.W.2d 518, 520 (1963) ; Miller v. State, 230 Ark. 352, 322 S.W.2d 685, 687 (1959).
Tennessee still maintains the distinction between sentences imposed by a judge and sentences imposed by a jury. Barrowman v. State, 214 Tenn. 408, 381 S.W.2d 251, 254 (1964) ; Robinson v. Air Draulios Engineering Co., 214 Tenn. 30, 377 S.W.2d 908, 913 (1964).
. 195 F.2d 583, 605 (2d Cir. 1952) (footnotes omitted).
. It is true that Supreme Ct.R. 51(b) states:
The supreme court may affirm, modify, vacate, set aside or reverse any judgment, decree, decision or order of a court lawfully brought before it for review, and may remand the cause and direct the entry of such appropriate judgment, decree or order, or require such further proceedings to be had as may be just under the circumstances.
This rule, of course, cannot add to the court’s jurisdiction.
. In State v. Pete, 420 P.2d 338, 342 (Alaska 1966) (footnote omitted), appel-lee was convicted on two counts, each charging the unlawful sale of intoxicating liquor. Both counts were based on *436sales made to the same informer on the .same day. This court stated :
In light of the fact that the two offenses were really part of one general transaction, * * * we believe the judgment of conviction should be modified so as to limit appellee’s sentences to the term of imprisonment that he has now served. [Appellee had served 17½ months of two one-year sentences which were to run consecutively.] ,
In Pete we relied upon and cited Patmore v. State, 152 Tenn. 281, 277 S.W. 892 (1925) which modified a sentence under similar facts on the ground that punishment cannot be pyramided and that it was unlawful to sentence cumulatively on each count where the offenses were but parts of the same transaction.
. gee Alaska Const. art. I, § 12.
. gee generally Ag 33.15.010-270.
. Ag 33.20.010-060.
. Ag 33.20.070.
. Ag 33.15.010.
. See Comment, Appellate Review of Primary Sentencing Decisions : A Connecticut Case Study, 69 Yale L.J. 1453, 1460 (1959-60) wMcli examines the statutory sentence review boards established as a Review Division of the Superior Court in Massachusetts and Connecticut. The sentence reviewing court is composed of three trial judges with authority to review and increase or decrease any sentence in excess of one year. The defendant is permitted to appear with counsel and be heard. The sentencing trial judge is permitted to and may be required to submit a statement of his reasons for a particular sentence.
. To the extent that this court reviewed a criminal sentence for abuse of discretion in Battese v. State, 425 P.2d 606, 611 (Alaska 1967), that holding is overruled.