This appeal is from the judgment of sentence for robbery, 18 Pa.C.S.A. § 1103, and possession of an instrument of crime, 18 Pa.C.S.A. § 1104. Appellant contends that the trial court erred in (1) denying his motion to dismiss under Pa.R.Crim.P. 1100; (2) granting the Commonwealth’s motion to consolidate six separate cases for trial; (3) denying his motion to suppress evidence seized during a consent search of appellant’s home; (4) excusing a juror; and (5) refusing to charge the jury to view identification testimony with caution. Appellant also contends that the court abused its discretion in imposing an excessive sentence. For the reasons set forth below, we affirm the judgment of sentence.
On December 13, 1985, appellant was arrested and charged with six counts of robbery and six counts of possession of an instrument of crime. The charges stemmed from six separate incidents that occurred over a three month period in 1985. The Commonwealth filed, and the court below granted, a motion to consolidate the six cases on the basis that they involved a common scheme. Following a jury trial, appellant was found guilty of all charges. Post-trial motions were filed and denied. Appellant was sentenced to an aggregate term of twenty-one-to-forty-two years imprisonment. This appeal followed.
Appellant contends initially that the court erred in denying his pre-trial petition to dismiss under Rule 1100. According to appellant, Rule 1100 requires that all requests for extension of trial date must be in writing. Specifically, appellant argues that because the Commonwealth orally *289 amended its petition and failed to file a written amendment as required by Rule 1100, the Commonwealth did not comply with the requirements of Rule 1100. We disagree.
Pennsylvania Rule of Criminal Procedure 1100 sets forth the prompt trial requirement and provides in relevant part:
(a)(2) Trial in a court case in which a written complaint is filed against the defendant ... shall commence no later than one hundred eighty (180) days from the date on which the complaint is filed.
Id.
Rule 1100 mandates that a defendant be discharged unless all periods of delay beyond the one-hundred-eighty day run date for the commencement of trial are attributable to either an extension granted to the Commonwealth or an exclusion of time resulting from either the unavailability of defendant or counsel, or a continuance chargeable to the defense. Pa.R.Crim.P. 1100(c)(1) and (d)(3).
See also Commonwealth v. Lafty,
Prior to the expiration of the date scheduled for the commencement of trial, the Commonwealth may apply to the court for an order extending the trial date. Pa.R. Crim.P. 1100(c)(1). “Where the Commonwealth, despite due diligence, cannot timely bring a defendant to trial because of judicial delay, the court properly may grant an extension.”
Commonwealth v. Colon,
Here, the written complaint against appellant was filed on December 10, 1985, and the run date for the commencement of trial was June 11, 1986. Appellant’s trial, however, did not commence until October 7, 1987, five-hundred-eighteen days after the complaint was filed. The running of the one-hundred-eighty-day period was initially tolled for four months by the unavailability of the trial judge.
See Commonwealth v. Colon,
In response to the judicial delay, the Commonwealth filed a written petition requesting additional time for trial premised on the preparation time necessary to accommodate the consolidation of the six cases. The petition was timely filed and served on appellant and it maintained how the Commonwealth was diligent in attempting to bring appellant to trial despite the court’s and defense counsel’s scheduling problems (the court’s four month unavailability and the withdrawal of initial counsel).
See Commonwealth v. Colon,
On three subsequent occasions, the Commonwealth orally amended its petition. The grounds for the amendments included a defense request for a continuance, unavailability of defense counsel, and judicial delay.
See Commonwealth v. Smith,
Accordingly, because the amendments were not new requests but “merely ... reasonable amendments] to the existing petition which previously established the Commonwealth’s diligence and provided appellant with the requisite notice.” id., the Commonwealth’s oral amendments were not improper.
Additionally, appellant’s claim is without substance because after deducting the excludable and extendable time from the period of time between the filing of the complaint and the commencement of trial, appellant was tried well *291 within one-hundred-eighty days. Thus, the court correctly denied appellant’s motion to dismiss under Rule 1100. See id.
Appellant next contends that the court erred in granting the Commonwealth’s motion to consolidate the six cases pending against him. Appellant argues that the Commonwealth failed to offer proof that all the crimes were the product of the same common scheme. According to appellant he was prejudiced by the consolidation of his six separate cases, because it permitted evidence of unrelated crimes to be presented to the jury. Because the court improperly granted the motion to consolidate, appellant believes that he is entitled to six new individual trials. We disagree.
The decision to grant or deny a motion for consolidation of charges for trial is a matter within the discretion of the trial court judge, and that decision shall not be reversed absent a manifest abuse of discretion or a showing of prejudice and clear injustice to the defendant.
Commonwealth v. Peppers,
The test of whether consolidation is proper is related to the test of whether evidence of one crime may be admitted at trial for another. The present rule in Pennsylvania [Pa.R.Crim.P. 1127] is that consolidation is proper ... if (1) the facts and elements of the two crimes are easily separable in the minds of the jury; [or] (2) the crimes are such that the fact of the commission of each crime would be admissible as evidence in a separate trial for the other.
Commonwealth v. Galloway,
Although as a general rule evidence of crimes unrelated to the one charged are inadmissible, it is well-established that evidence of one crime is admissible in limited circum
*292
stances against a defendant where it tends to prove (1) motive; (2) intent; (3) absence of mistake or accident; (4) a common scheme, plan or design embracing commission of two or more crimes so related to each other that proof of one tends to prove the others; or (5) to establish the identity of the person charged with the commission of the crime on trial.
Commonwealth v. Robinson,
Here, we are satisfied that there is sufficient similarity between the cases to justify consolidation and admission of evidence regarding each at the trial for the other for the purpose of showing a common scheme. Factually, all the offenses are of the same character within the meaning of Rule 1127(A)(1). Each of the six offenses was a robbery and involved identical methods. The Commonwealth offered proof of the following common elements of the six separate offenses: Each of the six victims was a deliveryman in the process of making a delivery in the early afternoon hours. All of the offenses occurred during a five-and-one-half week period and all took place within the same vicinity. All the victims were robbed at knifepoint by a single actor and had money taken directly from their pants pockets.
Consolidation is proper “where the crimes are such that the fact of the commission of each crime would be admissible as evidence in a separate trial for the other.” Pa.R. Crim.P. 1127A(l)(a);
See Commonwealth v. Galloway,
Next, appellant contends that the lower court erred in refusing to suppress the items seized from his bedroom during an invalid consent search. Specifically, appellant argues that the search was defective on three grounds. First, appellant contends that because he is an adult, his mother was unable to consent to a search of his room. Second, appellant contends that when the police officers asked for permission to search the premises, they failed to inform his mother that if she did not consent, a warrant would be obtained in order to search the premises. Third, appellant contends that the police officers failed to “memorialize” the search until after its completion. We will address these contentions seriatim.
Initially, appellant argues that because he is an adult his mother lacked authority to consent to the search and thus, the search was invalid. We disagree.
The law is well-settled that a warrantless search may be made with the voluntary consent of a third party who possesses “common authority over or other sufficient relationship to the premises or effects sought to be inspected.”
Commonwealth v. Lowery,
Common authority ... rests ... on mutual use of the property by persons generally having joint access or control for most purposes, so that it is reasonable to *294 recognize that any of the co-inhabitants has the right to permit the inspection in his own right and that the others have assumed the risk that one of their number might permit the common area to be searched.
Id.
In this analysis, we note that when the findings of the suppression court are sufficiently supported by the record, they will not be disturbed on appeal.
Commonwealth v. Lowery,
Here, appellant mistakenly challenges the validity of the search on the basis that his status as an adult precludes his mother from giving her consent to a search of their house. The law is very clear, however, that the determination of whether a third party may consent to a warrantless search does not depend on the age of the nonassenting party but on the “common authority” or “special relationship” shared by the cohabitants of the premises.
See id.,
305 Pa.Superior Ct. at 73,
In this case, our review of the record discloses that appellant resided with his mother and family in their home.
See
Motion to Suppress at 164, 176. When the police asked appellant’s mother for her permission to search the premises, she voluntarily consented to the search.
See id.
at 165. Subsequently, at the suppression hearing, appellant neither
*295
claimed nor introduced evidence that his mother did not share dominion over the premises or that he had expressed an intent to exclude persons from his bedroom.
See
Motion to Suppress at 164-179.
See also Commonwealth v. Van Jordan,
Appellant’s second argument is that the police were required to inform his mother that without her consent, a search warrant would be issued. Appellant fails to cite any legal authority for this proposition nor does he present an argument on this point. Accordingly, because this issue is not addressed in the argument portion of appellant’s brief, appellant has failed to comply with the briefing requirement pursuant to Pa.R.A.P. 2119, and has waived this claim.
See Commonwealth v. Colbert,
Appellant’s third argument is that the police were required to have appellant’s mother sign a consent form before searching appellant’s home. According to appellant, the police are required by Pa.R.Crim.P. 2008 to memorialize a search before conducting it and then provide a copy of the receipt listing any property seized from the premises to the consenting party. Appellant argues that the failure of the police to follow this procedure invalidates the search of his home. We disagree.
*296
Under Pennsylvania law, a valid consent search requires that the consent be voluntary and not the result of duress, force or coercion.
Commonwealth v. Markman,
For it would be thoroughly impractical to impose on the normal consent search the detailed requirements of an effective warning. Consent searches are part of the standard investigatory techniques of law enforcement agencies. They normally occur on the highway, or in a person’s home or office, and under informal and unstructured conditions.
Id.,
320 Pa.Superior Ct. at 315,
Here, appellant is misguided in his assertion that the directives of Rule 2008 apply to this case. As the Commonwealth correctly points out in its brief,
see
Brief for Appellee at 18-19, Rule 2008 pertains only to searches conducted pursuant to a warrant.
See
Pa.R.Crim.P. 2008.
See also Commonwealth v, Markman,
Accordingly, the trial court properly denied appellant’s suppression motion and permitted the introduction into evidence of items seized during the search.
Appellant further contends that the court below committed reversible error when it excused a juror, during individual voir dire, after the juror complained that she was “too nervous” to sit on the jury. Appellant argues that the court’s removal of the juror was an abuse of discretion and *297 a denial of his right to a jury of his own selection and that a new trial is warranted. We disagree.
It is well-settled that the discharge of a juror is within the sound discretion of the court and that determination will not be reversed absent a palpable abuse of discretion.
Commonwealth v. Graves,
In this case, after five jurors had been selected from the venire, the court continued the individual voir dire of the remaining venirepersons. At that time, the court crier advised the court that one of the selected jurors, Kecia Brinkley, voiced her concern that she was too nervous to sit on the jury.
See
N.T. October 7, 1987 at 34. Thereupon, over defense counsel’s objection, the court excused Kecia Brinkley from the jury.
See id.
In its opinion, the court stated that the juror could not fulfill her role as a competent juror and to ensure that appellant received a fair and impartial trial, it excused the juror as a precautionary measure.
See
Trial Court Opinion at 4. It was well within the court’s discretion to excuse the juror on the basis that she could not function in her capacity as a member of the jury.
See Commonwealth v. Graves,
Moreover, appellant did not object to any of the. other jurors selected from the venire after Kecia Brinkley was excused.
See
N.T. Jury Voir Dire October 7, 1987 at 34-40. Furthermore, appellant has not alleged that any of the jury members should have been stricken for cause. Accordingly, because appellant received a fair trial by an impartial jury, we conclude that the lower court did not abuse its discretion in excusing Kecia Brinkley because of her inability to perform as a juror.
See Commonwealth v. Graves,
Next, appellant contends that the court erred in denying his request for a jury instruction on the issue of the court’s denial of his motion for a pre-trial line-up.
*298
Specifically, appellant argues that the jury should have been given a
Sexton
charge to cure the suggestiveness of his in-court identification.
Commonwealth v. Sexton,
In
Commonwealth v. Sexton,
the Pennsylvania Supreme Court held that there is no constitutional right to a pre-trial line-up.
Id,.,
Here, the lower court properly denied appellant’s request for a
Sexton
charge. The justification for a
Sexton
charge is that because of the absence of
any
pre-trial identification, the suggestiveness of the in-court identification becomes overwhelming and must be tempered with a cautionary instruction. In
Sexton,
the sole evidence linking the defendant to the crime was the in-court identification testimony of two witnesses.
See id.,
*299
Finally, appellant contends that the sentencing court abused its discretion by imposing an excessive sentence. This claim is waived. To preserve a sentencing claim challenging the discretionary aspects of sentencing for our review, an appellant must comply with the requirements of Pa.R.A.P. 2119(f) and
Commonwealth v.
Tuladziecki,
Here, appellant has failed to comply with Rule 2119(f) and the requirements of
Tuladziecki
by not filing a statement of reasons for allowance of appeal setting forth his sentencing claim. The Commonwealth has objected to this defect in appellant’s brief.
See
Brief for Appellee at 12. Accordingly, because appellant failed to comply with Rule 2119(f) and
Tuladziecki,
and because the Commonwealth has objected, appellant’s sentencing claim is waived.
See Commonwealth v. Krum,
For the reasons set forth above, we affirm the judgment of sentence
JUDGMENT AFFIRMED.
