Following a jury trial commenced on January 5, 1976, appellant was convicted of robbery, 1 criminal conspiracy, 2 and two counts of aggravated assault. 3 Post-verdict motions were denied, and appellant was sentenced to ten to twenty years imprisonment for robbery, concurrent terms of five to ten years imprisonment for each aggravated assault, and a consecutive term of ten years probation for conspiracy. Appellant now makes various claims of error. Finding none of these meritorious, we affirm.
Viewing the evidence in the light most favorable to the Commonwealth as verdict winner,
Commonwealth v. Cherry,
*501 During the period immediately following the arrest, and through the suppression hearing, appellant was represented by a public defender from the Defender Association. At counsel’s request, several continuances were granted which extended the date of trial commencement beyond the 180 day limit mandated by Pa.R.Crim.P. 1100 4 for the start of trial. Present counsel began his representation subsequent to the suppression hearing but prior to trial. Present counsel also requested, and was granted, a continuance.
Appellant first contends that the court below erred in denying his request to dismiss the case pursuant to Pa.R.Crim.P. 1100. 5 We do not reach the merits of such a claim because it has not been properly preserved for appellate review. Rule 1100(f) delineates the procedure for entering an objection based on a violation of the 180 day provision of Rule 1100:
“At any time before trial, the defendant or his attorney may apply to the court for an order dismissing the charges with prejudice on the ground that this Rule has been violated. A copy of such application shall be served upon the attorney for the Commonwealth, who shall also have the right to be heard thereon. Any order granting such application shall dismiss the charges with prejudice and discharge the defendant.” Pa.R.Crim.P. 1100(f).
We have repeatedly made clear that the right to dismissal pursuant to a Rule 1100 violation is waived by failure to file a written petition to dismiss prior to the commencement of trial.
6
Commonwealth v. Yancey,
In conjunction with this claim, appellant apparently contends that prior counsel could not validly obtain continuances and waivers of Rule 1100 rights absent appellant’s knowing consent noted on the record. This claim is patently frivolous. We have held inferentially that counsel may request continuances that postpone trial commencement beyond the 180 day limit without the specific signed consent of his client.
See, e. g., Commonwealth v. Hickson, 235
Pa.Super. 496,
Although
Commonwealth v. Myrick,
Appellant’s second contention again raises the issue of original counsel’s competency. Because counsel did not obtain a transcript of the preliminary hearing prior to the suppression hearing, appellant argues that counsel was prevented from conducting an effective cross-examination. A review of the record does not support such a claim. 7
It is clear that the inability of counsel to obtain the preliminary hearing transcript is not
per se
a denial of due process, although in certain limited situations its possession could be viewed as a
sine qua non
to effective trial preparation.
See, Britt
v.
North Carolina,
In the case at bar, counsel at the suppression hearing was aware of the prior testimony. Indeed, it was later introduced at trial by present counsel for the purposes of cross-examination. Nowhere does appellant allege any specific prejudice flowing from its nonavailability, and it is not stated what discrepancies, if any, prior counsel could have elicited with the aid of the preliminary hearing testimony. Certainly, present counsel’s use of the transcript at trial resulted in no inconsistencies being developed. See, e. g„ N.T. 84-89, 96, 102-103. Nor did he produce the witnesses at trial who would have allegedly “state[d] under oath that the identifications made at the Preliminary hearing were not those made at the Motion to Suppress the Identification.” Brief for Appellant at 8.
A thorough review of the record convinces us that the cross-examination offered by appellant’s initial counsel was sufficiently rigorous to afford effective stewardship. The fact that few inconsistencies were revealed is no reflection on counsel’s competency. Simply because “every arguable inconsistency in . testimony” was not exposed does not lead to a conclusion of ineffective assistance.
Commonwealth v. Sullivan,
Appellant next argues that the lower court erred in not declaring a mistrial predicated on ¿he admission of hearsay testimony by a Commonwealth witness. The pertinent portion of the police officer’s testimony is as follows:
*505 “Q. After you searched cursorily for weapons, for your own protection, what did you then do?
A. We called for a wagon. And I contacted police radio, requested the location of the complainants.
Q. Of the what?
A. Where the complainants would be, for possible identification.
From the information I received from radio, I went to Misericordia Hospital, where I had identification made on—
MR. GUTKIN: [Defense Counsel] Objection. Mistrial. May we see Your Honor at side-bar?
THE COURT: All right.”
N.T. 176-77.
While the officer’s indication of an out of court identification, not necessarily that of appellant, is clearly hearsay, it is equally clear that the slip was not prejudicial. Corrective instructions were immediately given to the jury by the trial judge in which he delineated the hearsay rule and admonished the panel to disregard the witness’s statement in its entirety. It is well settled that such prompt curative instructions to a jury may rectify some prior prejudicial error.
E. g., Commonwealth v. Stoltzfus,
Moreover, it cannot be said, as appellant claims, that this constituted the sole means of identifying him and was thus not amenable to correction by a simple instruction. On the contrary, quite apart from the officer’s testimony, appellant was positively identified by several witnesses who were subject to cross-examination. In light of these facts, we cannot find the “flagrant abuse of discretion” that must appear before we would reverse a trial judge’s decision in refusing the grant of a mistrial.
Commonwealth
v.
Bian-cone,
Appellant’s final contention is that the trial judge failed to adequately charge the jury on his proffered alibi
*506
defense in accordance with the requirements of
Commonwealth v. Bonomo,
In Bonomo, our supreme court, in grappling with the correct form of an alibi charge, explicitly promulgated the following language:
“The Commonwealth has the burden of proving every essential element necessary for conviction. If the defendant traverses one of those essential elements by evidence of alibi, his evidence will be considered by the jury along with all the other evidence. It may, either standing alone or together with other evidence, be sufficient to leave in the minds of the jury a reasonable doubt which, without it, might not otherwise exist.” Commonwealth v. Bonomo, supra,396 Pa. at 231 ,151 A.2d at 446 .
As the
Bonomo
panel noted, it is necessary for the trial judge to “carefully instruct the jury as to the relationship of the evidence of the prosecution and the evidence of the defendant as each bears upon the essential elements of the crime charged.”
Id.,
“Furthermore, the defendant is presumed innocent throughout the trial, unless and until you conclude, based on careful and impartial consideration of the evidence, *507 that the Commonwealth has proven him guilty beyond a reasonable doubt.
It is not the defendant’s burden to prove that he is not guilty. Instead, it is the Commonwealth that always has the burden of proving each and every element of the crime charged and that the defendant is guilty of that crime beyond a reasonable doubt.
The person accused of a crime is not required to present evidence or prove anything in his own defense. If the Commonwealth’s evidence fails to meet its burden of proof, then your verdict must be not guilty. On the other hand, if the Commonwealth’s evidence does prove beyond a reasonable doubt that the defendant is guilty, then your verdict should be guilty.
Obviously, the defendant cannot be guilty unless he was at the scene of the alleged crime. In this case, the defense did not contest the fact that a robbery occurred. But the defendant has offered evidence to show that he was not present at the scene, but, rather, was with someone else. This is what we call alibi testimony, the testimony that you heard from the witness. You should consider this testimony along with all of the other evidence in the case in determining whether or not the Commonwealth has met its burden of proving beyond a reasonable doubt that a crime was committed and that the defendant himself committed or took part in the commission of that crime.
The defense testimony that he was not present may be sufficient, either by itself or together with other evidence, to raise a reasonable doubt of his guilt in your mind. If you have a reasonable doubt of the defendant’s guilt, then you must find him not guilty.”
N.T. 441, 448-49.
Appellant’s specific allegation that the trail court failed to “tell the jury that an alibi defense standing alone may be sufficient to leave in their minds a reasonable doubt, which, without it, might not otherwise exist” (Brief for Appellant *508 at 12), is belied by inspection of the last quoted paragraph above. This contention is without merit.
The judgment of sentence is therefore affirmed.
Notes
. 18 Pa.C.S. § 3701.
. 18 Pa.C.S. § 903.
. 18 Pa.C.S. § 2702.
. Pa.R.Crim.P. 1100(a)(2) provides:
“Trial in a court case in which a written complaint is filed against the defendant after June 30, 1974 shall commence no later than one hundred eighty (180) days from the date on which the complaint is filed.”
. Appellant was arrested on May 10, 1975. Counsel contends that the first effective waiver of Rule 1100 occurred on November 25, 1975, a point beyond the 180 day limit.
. The right to a dismissal is not waived if the failure to file a proper petition is alleged to be the result of counsel’s ineffectiveness.
E. g., Commonwealth
v.
Blanchard, supra.
Appellant argues, however,
*502
that original counsel was ineffective in requesting continuances, not in failing to request a dismissal under Rule 1100. Moreover, because of our decision that such continuances were not improper, a petition to dismiss under Rule 1100 would have been properly denied by the lower court. Counsel’s stewardship cannot be deemed ineffective for failure to file futile motions.
Commonwealth v. Gaither,
. We do not agree with appellee that this objection was waived by failure to raise it either at or before trial. While it is true that one is required to raise the issue of prior counsel’s ineffectiveness “at the earliest stage in the proceedings at which the counsel whose effectiveness is being challenged no longer represents the defendant,”
Commonwealth
v.
Hubbard,
