delivered the opinion of the Court.
This case presents the issue whether a defendant in a criminal prosecution by the State of Maryland may appeal, before trial, a circuit court’s order denying his motion to dismiss the indictment because of an alleged violation of his right to a speedy trial guaranteed by the Sixth Amendment to the Constitution of the United States 1 and by Article 21 *559 of the Declaration of Rights of the Constitution of Maryland. 2 We hold that he may not.
I
Gregory Victor Stewart was charged under an indictment filed in the Circuit Court for Prince George’s County with armed robbery and nine related offenses. Trial was scheduled for 4 May 1977. On 3 May he filed a motion to dismiss the indictment, alleging that he had been denied a speedy trial. When thе case came on for trial the next day, the court determined the motion as a preliminary matter. Upon a plenary hearing, the motion was denied. Stewart submitted to the court forthwith an order “for an immediate appeal from the court’s denial” to the Court of Special Appeals. When the appeal reached the intermediate appellate court, we granted a writ of certiorari before decision by it. The appeal was heard by us on 6 January 1978.
II
By order of 20 June 1977,
On 24 January 1975 the grand jury of the United States District Court for the Eastern District of North Carolina indicted Jeffrey R. MacDonald on three counts of first-degree murder. Among a number of pretrial motions submitted by MacDonald which were denied by the District Court were a
*560
motion to dismiss the indictment because of the denial of his Sixth Amendment right to a speedy trial and another to dismiss on double jeopardy grounds. The United States Court of Appeals for the Fourth Circuit stayed the trial and allowed an interlocutory appeal. By a divided vote, it reversed the District Court’s denial of the motion to dismiss on speedy trial grounds and remanded the case with instructions to dismiss the indictment.
United States v. MacDonald,
Ill
The Supreme Court found that MacDonald presented the issue “whether a defendant, before trial, may appeal a federal district court’s order denying his motion to dismiss an indictment because of an alleged violation of his Sixth Amendment right to a speedy trial.” Id. at 850 (emphasis in original). The reason underlying the conclusion that he may not was, “ri]n sum,” that the Court declined “to exacerbate pretrial delay by intruding upon accepted principles of finality to allow a defendant whose speedy trial motion has been denied before trial to obtain inter *561 locutory appellate review.” Id. at 863. The precise holding was that “the Court of Appeals lacked jurisdiction to entertain [MacDonald’s] speedy trial appeal.” Id. at 857. We look to see how the Court reached this holding.
Citing
Abney v. United States,
“In so holding, the Court emphasized the special features of a motion to dismiss based on double jeopardy. It pointed out, first, that such an order *562 constitutes ‘a complete, formal and, in the trial court, a final rejection of a criminal defendant’s double jeopardy claim. There are simply no further steps that can be taken in the District Court to avoid the trial the defendant maintains is barred by the Fifth Amendment’s guarantee. Hence, Cohen's. threshold requirement of a fully consummated decision is satisfied.’431 U. S. at 659 . Secondly, it noted that ‘the very nature of a double jeopardy claim is such that it is collateral to, and separable from, the principal issue at the accused’s impending criminal trial, i.e., whether or not the accused is guilty of the offense charged.’ Ibid. Finally, and perhaps most importantly, ‘the rights conferred on a criminal accused by the Double Jeopardy Clause would be significantly undermined if appellate review of double jeopardy claims were postponed until after conviction and sentence.’ Id., at 660. . . .”435 U. S. at 855, 856 . [46 U.S.L.W. at 4396 ],
MacDonald
then proceeded to apply the principles enunciated in those precedents to the case before it, finding their application “straightforward.”
4
Ibid.
Like the denial of a motion to dismiss an indictment on double jeopardy grounds, a pretrial order rejecting a defendant’s speedy trial claim is not final in the sense of terminating the criminal proceedings in the trial court. Therefore, if it may be appealed before trial, it is because it satisfies the criteria identified in
Cohen
and
Abney
as sufficient to warrant suspension of the established rules against piecemeal review before final judgment. The Court believed it clear that the criteria were not satisfied. This is so because (1) the denial of a motion to dismiss on speedy
*563
trial grounds is not a fully consummated decision, and (2) it is not collateral to and separable from the principle issue at the impending criminal trial of the accused,
i.e.,
whether or not he is guilty of the offense charged. As to the first, most speedy trial claims are best considered only after the relevant facts have been developed on trial. Of the four factors listed in
Barker v. Wingo,
“Before trial, of course, an estimate of the degree to which delay has impaired an adequate defense tends to be speculative. The denial of a pretrial motion to dismiss an indictment on speedy trial grounds does not indicate that a like motion made after trial — when prejudice can be better gauged -- would also be denied. Hence, pretrial denial of a speedy trial claim can never be considered a complete, formal, and final rejection by the trial court of the defendant’s contention; rather, the question at stake in the motion to dismiss necessarily ‘remains open, unfinished [and] inconclusive’ until the trial court has pronounced judgment. Cohen, 337 II. S. at 546. . . MacDonald,435 U. S. at 858, 859 .
With respect to the second, “[t]here exists no such divorce between the question of prejudice to the conduct of the defense (which so often is central to an assessment of a speedy trial claim) and the events at trial. Quite the contrary, in the usual case, they are intertwined.” Ibid. But, the Court continued, “[e]ven if the degree of prejudice could be accurately measured before trial, a speedy trial claim nonetheless would not be sufficiently independent of the outcome of the trial to warrant pretrial appellate review.” Ibid. In any event, “[a] central interest served by the Speedy Trial Clause is the protection of the factfinding process at trial. The essence of a defendant’s Sixth Amendment claim *564 in the usual case is that the passage of time has frustrated his ability to establish his innocence of the crime charged. Normally, it is only after trial that that claim may fairly be assessed.” Ibid.
Moreover, the Court deсlared, the denial of a motion to dismiss on speedy trial grounds does not actually involve an important right which would be lost, probably irreparably, if review had to await final judgment. The Court went on to say that despite some superficial attraction in the argument that the right to a speedy trial — by analogy to the rights represented by the double jeopardy claim in Abney, the demand for reduced bail in Stack, and the posting of security at issue in Cohen — must be vindicated before trial in order to insure that no nonspeedy trial is ever held, the argument fails both doctrinally and pragmatically:
“Unlike the protection afforded by the Double Jeopardy Clause, the Speedy Trial Clause does not, either on its facе or according to the decisions of this Court, encompass a ‘right not to be tried’ which must be upheld prior to trial if it is to be enjoyed at all;. It is the delay before trial, not the trial itself, that offends against the constitutional guarantee of a speedy trial. If the factors outlined in Barker v. Wingo, supra, combine to deprive an accused of his right to a speedy trial, that loss, by definition, occurs before trial. Proceeding with the trial does not cause or compound the deprivation already suffered.
“Furthermore, in most cases, as noted above, it is difficult to make the careful examination of the constituent elements of the spеedy trial claim before trial. Appellate courts would be in no better position than trial courts to vindicate a right that had not yet been shown to have been infringed.”435 U. S. at 861 .
The Court thought that the application of the principles articulated in
Cohen
and
Abney
to speedy trial claims was in itself dispositive, compelling the conclusion that such claims are not appealable before trial.
Id.
It reinforced its conclu
*565
sion, however, “by the important policy considerations that underlie both the Speedy Trial Clause and 28 U.S.C. § 1291.”
Ibid.
One of the principal reasons for strict adherence to the doctrine of finality in criminal cases is the speedy trial guаrantee.
Di Bella,
“Many defendants, of course, would be willing to tolerate the delay in a trial that is attendant upon a pretrial appeal in the hope of winning that appeal. The right to a speedy trial, however, ‘is generically different from any of the other rights enshrined in the Constitution for the protection of the accused’ because ‘there is a societal interest in providing a speedy trial which exists separate from, and at times in opposition to, the interest of the accused.’ Barker v. Wingo,407 U. S. at 519 . See also United States v. Avalos,541 F. 2d 1100 , 1110 (CA5 1976), cert. denied,430 U. S. 970 (1977). Among other things, delay may prejudice the prosecution’s ability to prove its case, increase the cost to society of maintaining those defendants subject to pretrial detention, and prolong the period during which defendants released on bail may commit other crimes. Dickey v. Florida,398 U. S. 30 , 42 (1970) (Brennan, J., concurring). “Allowing an exception to the rule against pretrial appeals in criminal cases for speedy trial claims would threaten precisely the values manifested in the Speedy Trial Clause. And some assertions of delay-caused prejudice would become self-fulfilling prophecies during the period necessary for appeal.” Ibid.
The Court advanced one final argument why, as a matter of policy, pretrial appeals on speedy trial grounds should be disallowed.
“As the Court previously has observed, there is nothing about the circumstances that will support a *566 speedy trial claim which inherently limits the availability of the claim. See Barker v. Wingo,407 U. S. at 521-522, 530 . Unlike a double jeopardy claim, which requires at least a colorable showing that the defendant once before has been in jeopardy of federal conviction on the same or a related offense, in every case there will be some period between arrest or indictment and triаl during which time ‘every defendant will either be incarcerated... or on bail subject to substantial restrictions on his liberty.’ Id., at 537 (White, J. concurring). Thus, any defendant can make a pretrial motion for dismissal on speedy trial grounds and, if § 1291 is not honored, could immediately appeal its denial.” Ibid. See footnote 3, supra.
IY
Maryland also disfavors interlocutory or “piecemeal” appeals, and has enacted a law (comparable to the federal statute) which has been construed to mean that a defendant in a criminal proceeding may appeal only from a final judgment. Maryland Code (1974) § 12-301 of the Courts and Judicial Proceedings Article;
5
Neal v. State,
In
Harris v. State,
“While it is perfectly true that an appeal will not lie from a judgment that is not final... and ordinarily denial of a ‘motion to quash’ is not a final judgment, on the other hand it is just as true that when a prisoner claims that he has been denied a speedy trial and has thereby become entitled to be freed of further proceedings in a case, and his claim is decided against him, this is a final ruling denying his claimed right, from which an appeal will lie.” 6 Id. at 294.
In
Jones v. State,
Until 1974, decisions of the Court of Special Appeals consistently followed the holdings of
Harris
and
Jones.
In a number of cases, under the corollary to the rule prohibiting appeals from interlocutory orders, it entertained, before trial on the merits, an appeal from an order denying a defendant’s motion to dismiss an indictment grounds on a violation of his right to a speеdy trial or his right not to be placed twice in
*568
jeopardy.
7
On 11 February 1974, the Court of Special Appeals decided
Neal v. State,
Neal
concerned double jeopardy. The Court of Appeals reviewed the decision on grant of a writ of certiorari.
Neal v. State,
The Court of Special Appeals considered our decision in
Neal
in its
Taylor v. State,
“It is clear that the opinion of the Court of Appeals in Neal is directed solely to the question of the immediate appealability of a denial of a motion to *569 dismiss that is grounded on double jeopardy. The Court did not address itself to the question of whether a motion to dismiss for lack of a speedy trial was immediately appealable.
“The express message of the Court of Appeals in Neal is unmistakable. A denial of a motion to dismiss an indictment on the ground of double jeopardy is appealable immediately. The underlying message of Neal is equally unmistakable, i.o., our decision in Neal v. State with respect to the holding that a denial of a motion to dismiss for lack of speedy trial is interlocutory and thus not immediately appealable is still viable.” Id22 Md. App. at 372-373 .
It made its position plain:
“In order to avoid any рossible confusion as to whether an immediate appeal lies from a motion to dismiss for lack of a speedy trial we flatly hold that a denial of such a motion is interlocutory and consequently not immediately appealable, subject, however, to the exception stated in Neal v. State,20 Md. App. at 30 .” Id.22 Md. App. at 374 .
The Court of Special Appeals followed
Taylor
in
Brady v. State,
We were not afforded the opportunity to review the judgment of the Court of Special Appeals in either
Taylor
or
Brady,
there being no petition filed for the issuance of a writ of certiorari. We made our position known, however, in
Erbe v. State, 276
Md. 541,
“However, it is plain under Jones v. State,241 Md. 599 , 600-01,217 A. 2d 367 (1966), and Harris v. State,194 Md. 288 , 294,71 A. 2d 36 (1950), that denial of a speedy trial is a final judgment from which the right of immediate appeal exists.” Id. at 553 n. 1.
*570 We completely agree with the Court of Special Appeals that our express message in Neal is unmistakably that a denial of a motion to dismiss an indictment on the ground of double jeopardy is appealable immediately. This, as MacDonald makes manifest, is consistent with the decisions of the .Supreme Court. But, as the Court of Special Appeals noticed, in our Neal we did not address the question of whether a motion to dismiss for lack of a speedy trial was immediately appealable. We did not do so because the question was not presented by the Neal appeals, and we saw no need to discuss it by way of obiter dictum, especially in the light of Harris and Jones. We thought that the proper time to decide whether the holdings of those cases were to be reconsidered was when the question was squarely before us. The case sub judice places the question squarely before us. We now reconsider the holdings of Harris and Jones, and we do so in the light of MacDonald.
V
In
Harris
we declared the Sixth Amendment to the United States Constitution and Article 21 of the Declaration of Rights of the Maryland Constitution to be self-executing.
Furthermore, we see no substantive difference between the Maryland statute and the federal statute granting appellate jurisdiction. The purpose of Maryland Code (1974) § 12-801 of the Courts and Judicial Proceedings Article, like that of 28 U.S.C. § 1291, is to prohibit piecemeal disposition of litigation.
Warren v. State,
Also, we have recognized and applied the final judgment rule’s "collateral order” exception articulated in
Cohen v. Beneficial Industriаl Loan Corp., supra. Jolley v. State,
In light of all of this, we think that the reasons and rationale of MacDonald, leading to the conclusion that a defendant in a federal criminal prosecution may not, before trial, appeal a federal district court’s order denying his motion to dismiss an indictment because of an alleged violation of his Sixth Amendment right to a speedy trial, apply equally to lead to the conclusion that a defendant in a criminal proceeding by the State of Maryland may not, before trial, appeal a circuit court’s order denying his motion to dismiss because of an alleged violation of either his Sixth Amеndment or Art. 21 right to a speedy trial. Our holding in Harris, and followed in Jones, was reached by applying the corollary to the *572 finality of judgment rule, namely that the order denying the motion to dismiss on speedy trial grounds, although apparently interlocutory, was final because it denied an absolute constitutional right. We are now persuaded otherwise by MacDonald We now believe, for the reasons set out in MacDonald, that a pretrial order of a circuit court denying a defendant’s motion to dismiss on speedy trial grounds, unlike a pretrial order denying a motion to dismiss on double jeopardy grounds, is interlocutory and does not fall within the corollary to the general rule that only final judgments are appealable. We expressly overrule Harris and our decisions it spawned. We hold that the оrder denying the motion to dismiss was not a final order and was not subject to an appeal before trial. It follows, therefore, that the appeal to the Court of Special Appeals, which is before us upon our grant of a writ of certiorari, was not allowed by law, and we dismiss it. Maryland Rule 835 a 1.
VI
As we have indicated, when Stewart’s motion to dismiss was denied before trial, he immediately filed an appeal therefrom in open court. The judge said:
“That will be denied^ I understand that is an interlocutory order and we will proceed to trial. The remedy for the defendant is preserved because if he is convicted he cаn raise the issue on appeal not only of the conviction or any error that may have resulted in that conviction during the trial, but also the denial of the motion for lack of speedy trial.” 9
Trial on the offenses charged in the indictment went forward, and Stewart was found guilty by a jury of robbery *573 with a deadly weapon (1st count) and the use of a handgun in the commission of a crime of violence (10th count). 10
We have said that the general rule is that the perfecting of an appeal brings the subject matter thereof within the exclusive jurisdiction of the appellate court and suspends the authority of the trial court over it during the рendency of the appeal; that the trial court lacks jurisdiction to take any further action in the case with respect to the subject matter of, or affecting, the proceeding until the receipt of the mandate of the appellate court after the appeal has been heard and decided.
Vancherie v. Siperly,
“If the accused in a criminal case could deprive the trial judge of jurisdiction to try and determine his *574 case by taking an appeal from a nonappealable interlocutory order, then he would be vested with the power to ‘paralyze the administration of justice in the [courts] by the simple expedient of doing what the law does not allow him to do, i.e., taking an appeal from an order which is not appealable.’ ” Id. at 476 (quoting Veazey v. Durham,231 N. C. 357 , 364,57 S.E.2d 377 (1950)).
We conclude that the trial court did not err in proceeding with the trial of the case.
There is another twist, however. After Stewart had been convicted by the jury, the judge deferred the imposition of sentence until 7 June 1977, pending thе receipt of a pre-sentence report. On 9 May 1977 Stewart filed a motion for a new trial. According to the docket entries this motion was heard in open court on 7 June, the day set for sentencing. The record submitted to us does not include a transcript of the proceedings, but the docket entries reflect what occurred. It is manifest that the trial judge had changed his view regarding the right of a defendant to appeal immediately from a denial of a motion to dismiss an indictment when the motion is based upon the right to a speedy trial. The judge did not rule on the motion for a new trial, and he did not impose sentencеs on the verdicts of conviction. The docket entry reads: “Further Proceedings stayed pending appeals.”
11
Thus, there was no final judgment on the merits of the criminal cause because sentence had not been imposed.
Buckner v. State,
By our dismissal of the appeal, the case will return to the trial court. Inasmuch as Stewart has been duly tried and convicted, a final, appealable judgment will result with the imposition of sentence. On receipt of the case, the trial court should rule on thе motion for a new trial. If the motion is denied, it should impose sentence. Upon a timely appeal from the judgment thus obtained, as the trial judge originally observed, the denial of the motion to dismiss on speedy trial grounds will be subject to appellate review. Maryland Rules 887 and 1087.
Appeal dismissed; costs to be paid by the appellant.
Notes
. “In all criminal prosecutions, the accused shall enjoy the right to a speedy ...
trial----”
U.S. Const. amend. VI. Klopfer v. North Carolina,
. The “People of the State of Maryland” declared in Article 21 of the Declaration of Rights of the Constitution of Maryland “That in all criminal prosecutions, every man hath a right... to a sрeedy trial----”
. 28 U.S.C. § 1291 reads:
“The courts of appeals shall have jurisdiction of appeals from all final decisions of the district courts of the United States, the United States District Court for the District of the Canal Zone, the District Court, of Guam, and the District Court of the Virgin Islands, except where a direct review may be had in the Supreme Court.”
. The Court found that United States v. Marion,
. Code (1974) § 12-301 of the Courts and Judicial Proceedings Article provides,
inter alia,
with exceptions not here relevant, that “a party may appeal from a final judgment entered in a civil or criminal case by a circuit court.” Section 12-101 defines “final judgment” to mean “a judgment, decree, sentence, order, determination, decision, or other action by a court, including an orphans’ court, from which an appeal, application for leave to appeal, or petition for certiorari may be taken." The Revisor’s note explains that "[tlhis definition does not attempt to specify what is an appealable final order. That is left to case law, as at present.” The reasons for the statutory provision, which are in line with the policy considerations for finality of judgment noted in United States v. MacDonald,
. A motion to dismiss has supplanted the former motion to quash. See former Maryland Rule 725 a, present Maryland Rule 736.
.
See
Williams and Burchett v. State,
. Whether there is a difference between the two rights as to the demand for a speedy trial has not yet been decided. In Smith v. State,
“This Court, in cases decided prior to the United States Supreme Court’s rejection of the demand-waiver doctrine in Barker v. Wingo, *571407 U. S. 514 , 523-28,92 S. Ct. 2182 , 2188-91,33 L.Ed.2d 101 (1972), held that an accused waives his Maryland Article 21 right unless he affirmatively demands a speedy trial. See, e.g., State v. Murdock,235 Md. 116 , 123,200 A. 2d 666 , cert. denied,379 U. S. 914 (1964); Harris v. State,194 Md. 288 , 297,71 A. 2d 36 (1950).”
See also
Swift v. State,
. The judge was of the same mind after hearing further from defense counsel on the point. Although he found defense counsel’s argument “very Persuasive,” he still denied the “right to appeal.” He expressed the hope, owever, that “the appellate court on the appropriatе occasion will spell out exactly what they mean in that area because I think we are all agreed we are not quite sure what they mean.”
The judge indicated that the matter of an immediate appeal had also been discussed in his chambers with defense counsel and the Assistant State’s Attorney. If the discussion was recorded, a transcription of it does not appear in the record before us.
. At the close of all the evidence, a motion for judgment of acquittal was made and denied. A nolle prosequi was then entered as to counts 2 through 9 which charged crimes related to the armed robbery.
. Aсcording to the docket entries of 7 June 1977 the trial judge also reinstated the bond of $5,000 and directed: “Order for Appeal filed May 4, 1977 to be filed as of June 7,1977.” Both the notice of appeal and the docket show that this was done, the docket entry reading: “Notice of appeal filed in open court on May 4,1977 Refiled.” Apparently, the direction with regard to the order of appeal was to assure that there were no procedural infirmities. See Maryland Rules 1011 and 1012.
. Courts and Judicial Proceedings Article of the Maryland Code (1974) § 12-301 expressly permits a defendant in a criminal case to “appeal even though imposition or execution of sentence has been suspended.” There was no suspension of the imposition of sentence here within the contemplation of § 12-301. See Maryland Code (1957, 1976 Repl. Vol.) Art. 27, § 641A.