GILBERTSON, Justice.
[¶ 1.] Robert John Loftus appeals his conviction on three counts of first degree robbery, one count of commission of a felony while armed with a firearm, and two counts of second degree rape. We affirm.
FACTS AND PROCEDURE
[¶ 2.] On April 22, 1995, Video World I, a Rapid City, South Dakota business, was robbed at gun point. The clerk on duty at the time, K.K, testified that a man carrying a gun entered the store at approximately 10:30 p.m., just before she was going to close. She identified the robber as wearing a black sweat suit and a black ski mask. The perpetrator pointed the weapon at K.K.’s face, had her lock the doors, turn off the lights and give him all of the money except for the loose change. Next, the robber demanded to know where the safe was. After removing the money from the safe, the perpetrator took K.K. to a back room, threatened and then brutally raped her. K.K. tried to get the perpetrator to leave by telling him that someone would be by to cheek on her soon. K.K. was then told to get on her stomach so the robber could tie her hands behind her back with telephone cords. The perpetrator left a short time later. K.K. testified that she had heard the perpetrator’s voice several times that evening when he made statements such as: “this is a robbery;” “don’t be stupid;” “you’re not even worth it, I might as well just kill you;” and not to do anything stupid or he would find out where she lived and hunt her down to kill her.
[¶ 3.] Another robbery occurred at a different Video World (Video World II) in Rapid City on June 7, 1995. At approximately 10:00 p.m. the clerks, J.C. and C.H., were in the process of closing the store. C.H. was outside waiting for J.C. to set the store’s alarm when a person with a gun, wearing black clothes and a black ski mask approached and made her unlock the door. C.H. testified that she had some knowledge of guns and the one carried by the robber that evening looked like a 9 mm Ruger her parents owned. Once inside the store the robber demanded that the victims show him the safe. After taking the money from the safe he took the victims to a secluded area of the store and had J.C. lie on her stomach. He then used an extension cord to tie J.C.’s hands together. He then asked where the telephone cords were in order to better secure J.C. Next, he attempted to take C.H. to another area of the store. However, C.H. testified that at this point she knew that the clerk at the Video World I robbery was raped, so she started “flipping out” and refused to leave the side of J.C. Frustrated, the perpetrator eventually gave in and tied C.H. up near J.C. The robber left shortly after J.C. told him that her boyfriend would be coming soon. The perpetrator made several statements during the robbery and repeatedly threatened to “blow” the victims “away.”
[¶4.] On June 21, 1995, the Jug Liquor Store (Jug) in Box Elder, South Dakota was robbed at approximately 10:55 p.m. The only clerk on duty at that time, V.N., testified that the robber entered the store wearing a black ski mask and carrying a black 9 [169] mm gun. V.N. was told to take the money from the till and put it in a bag. The robber told her he wanted the cash and “just the quarters” but did not want the loose change. Next, the perpetrator removed the' money from the Jug’s safe. At this point he had V.N. lay down on her stomach so he could tie her hands and ankles with a telephone cord and extension cord. Thereafter, the robber put the gun to V.N.’s head and said, “now this will be the true test to see if you’re gonna live or not.” The perpetrator took V.N. to another room and then raped her. V.N. attempted to prompt the perpetrator to leave by telling him that her friends would be concerned if they saw her ear outside so late. Before leaving, he retied her wrists to her ankles. She remained in this state until the Jug’s owner arrived in the morning. At some point that evening the perpetrator used a magic marker to write “Dirty White Boys” and “TBZ”1 on a television and the cooler doors.
[¶ 5.] A few days before the Jug robbery, a Box Elder man approached a red Hyundai with tinted windows parked near the Jug and noticed the driver lay down on the seat. He became suspicious and followed the car for some distance before losing sight of it. After the Jug robbery he heard a news story that the police were looking for information, concerning a red vehicle with tinted windows that was seen in the parking lot of a bar and supper club (supper club) northwest of Rapid City that was robbed on April 26,1995.2 The Box Elder man found the red car he had seen before the Jug robbery near the location he had lost sight of it just days before. He wrote down the license number and gave it to the police. The car was registered to Loftus.
[¶ 6.] On June 24, 1995 a warrant was issued for Loftus. The next day a highway patrol officer identified a car matching the description of Loftus’ car and turned on his lights and siren. Loftus fled but was eventually apprehended after a high-speed chase. Police recovered currency believed to have been taken from the Jug as well as firearms matching descriptions of the weapons used in the robberies. Loftus was interviewed by the police and eventually stated that he was only the driver, but did not otherwise participate, in the Jug robbery and rape and the robbery of the supper club.
[¶ 7.] During the course of the investigation the State performed tests on vaginal/eer-vical swabs obtained from K.K. and V.N. in order to locate the presence of bodily fluids that were foreign to . the victims. The tests were positive and later comparisons disclosed that Loftus had.the same enzyme type as that found in the victim samples. Following the serological testing, the State hired an expert, James Liberty (Liberty) of Precision Genetics, to perform DNA testing. Liberty’s testimony at trial essentially consisted of two components. First, Liberty concluded that the DNA pattern from the K.K. and V.N. samples matched the DNA pattern obtained from Loftus’ blood sample. Liberty used a procedure known as Restricted Fragment Length Polymorphism (RFLP) to obtain the match. The second component of Liberty’s testimony concerned the statistical probability that a random person could, by chance, have the same DNA pattern as that located on the samples taken from the victims. Using a standard population genetics equation known as the “product rule” or “Hardy-Weinberg equation,”3 Liberty, concluded that the possibility of a random match between V.N. and Loftus was one in forty-six million. [170] With regard to K.K., Liberty testified that the possibility of a random match was one in fifteen thousand.
[¶ 8.] On January 8, 1996, Loftus was arraigned on a two-part information. Part I alleged that Loftus committed the crimes at Video World I and II as well as the Jug. Part II alleged that Loftus was a habitual offender. The jury convicted Loftus on all counts in Part I of the indictment. Loftus waived a jury trial on Part II and the trial court found him to be a habitual offender based upon his convictions of attempted escape and grand theft in 1988. Loftus was sentenced to life in prison without parole on all Counts. Loftus appeals his convictions, raising the following issues:
1. Whether the trial court abused its discretion when it denied Loftus’ motion for severance?
2. Whether the in-court identification of Loftus’ voice by the victims of Video World I and the Jug was unreasonably suggestive and resulted in prejudice to Loftus?
3. Whether the trial court abused its discretion in admitting statistical DNA evidence?
4. Whether the trial court abused its discretion in allowing a police officer to testify about similarities between writings left at the Jug crime scene and writings contained in a notebook found on Loftus’ dresser?
5. Whether Loftus was prejudiced through the State’s demonstrative use of a pictorial exhibit of a 9 mm handgun?
6. Whether there was sufficient evidence upon which to convict Loftus?
ANALYSIS AND DECISION
[¶ 9.] 1. Whether the trial court abused its discretion in denying Lof-tus’ motion for severance of the charges.
[¶ 10.] We review a trial court’s denial of a motion to sever charges under an abuse of discretion standard. State v. Thompson, 1997 SD 15, ¶ 14, 560 N.W.2d 535, 538; State v. Busack, 532 N.W.2d 413, 417 (S.D.1995). “An abuse of discretion arises only where the party requesting severance of joined counts can make a clear showing of prejudice to substantial rights.” Thompson, 1997 SD 15 ¶ 14, 560 N.W.2d at 538 (citations omitted).
[¶ 11.] SDCL 23A-6-23 provides the standard for joinder of related offenses in
same indictment or information:
Two or more offenses may be charged in the same indictment or information in separate counts for each offense, if the offenses charged, whether felonies or misdemeanors or both, are of the same or similar character or are based on the same act or transaction or on two or more acts or transactions connected together or constituting parts of a common scheme or plan.
(Emphasis added). SDCL 23A-11-2 provides the guidelines to the trial court where it appears joinder may result in prejudice to the defendant or to the State:
If it appears that a defendant or the state is prejudiced by a joinder of offenses or of defendants in an indictment or information or by such joinder for trial together, the court may order an election or separate trials of counts, grant a severance of defendants or provide whatever other relief justice requires. In ruling on a motion by a defendant for severance the court may order the prosecuting attorney to deliver to the court for inspection in camera any statements or confessions made by the defendants which the state intends to introduce in evidence at the trial.
[¶ 12.] We have held that “[w]here separately charged offenses are closely related in location and manner of execution_” join-der may be appropriate. Thompson, 1997 SD at 15 ¶ 16, 560 N.W.2d at 539 (citing Busack, 532 N.W.2d at 417; State v. Closs, 366 N.W.2d 138, 140 (S.D.1985)). This test for finding joinder appropriate where the separately charged offenses are closely related in location and manner of execution has been broadly construed. Shape, 517 N.W.2d at 654 (citing State v. Dixon, 419 N.W.2d 699, 702 (S.D.1988)).
[171] [¶ 13.] In Thompson, this Court found no abuse of discretion by the trial court in joining for trial three informations charging the defendant with six counts of sexual misconduct of three minor children. 1997 SD at 15 ¶ 17, 560 N.W.2d at 539. Specifically, we found joinder under the “same or similar character” test proper since the charges of sexual misconduct all involved defendant’s nieces, occurred over a four-month period, and all of the crimes occurred in defendant’s mobile home. Id. In Closs, this Court found that joinder may be proper where separately charged offenses are closely related in time, location, and manner of execution. 366 N.W.2d at 138. See also Busack, 532 N.W.2d at 417 (separate charges satisfied “same or similar character” requirement because both involved illegal possession of controlled substances, and both incidents took place at the same location).
[¶ 14.] The facts of the present case indicate that the charges stemming from the crimes committed at Video World I, Video World II, and the Jug were properly joined as they were similar in character and closely related in time, place, and manner of execution. Closs, 366 N.W.2d at 140. All of the charges involved crimes committed in or near Rapid City. The crimes were committed within a period of sixty-one days by a person dressed in black, wearing a black ski mask, and carrying a firearm just before the businesses were to close. In each instance the robber made repeated verbal threats, forced each of his victims to lie on their stomach so he could tie their hands together with either a telephone or extension cord. In the three ciimes, money was taken from the cash registers, safes, and the purses of each victim. The victims in the Video World I and the Jug robberies were raped and the victim in Video World II thought she would be raped when the perpetrator tried to take her to a secluded area of the store. Additionally, .in all cases the perpetrator left shortly after the victims told him that third parties would be checking on them soon. Under the “same or similar character” analysis we look to the similarities of the charges and find no abuse of discretion by the trial court.
[¶ 15.] 2. Whether the in-court identification of Loftus’ voice by the victims of Video World I and the Jug was unreasonably suggestive and resulted in prejudice to Loftus?
[¶ 16.] In-court identifications are inadmissible when they are derived from an impermissibly suggestive identification lineup procedure which has a substantial likelihood of resulting in irreparable misidentifieation. State v. Garza, 1997 SD 54, ¶ 32, 563 N.W.2d 406, 412; State v. Abdo, 518 N.W.2d 223, 225 (S.D.1994); State v. Iron Thunder, 272 N.W.2d 299, 301 (S.D.1978); State v. Sahlie, 90 S.D. 682, 688, 245 N.W.2d 476, 479 (1976); State v. Barcley, 88 S.D. 584, 587, 225 N.W.2d 875, 877 (1975). The trial court will not be reversed unless an abuse of discretion is shown. Abdo, 518 N.W.2d at 226. We apply the two-prong test for photographic lineups from Abdo to the pre-trial voice identification of Loftus: “(1) Was the lineup im-permissibly suggestive, and (2) if so, was the subsequent in-court identification tainted?” 518 N.W.2d at 225 (citing Iron Thunder, 272 N.W.2d at 301). “The burden of establishing the impermissible suggestiveness of the photographic lineup is on the party seeking to suppress the evidence.” Id.
The suggestiveness of the procedure is evaluated by examining the totality of the circumstances surrounding the identification procedure. Under the totality of the circumstances, if there is not a very substantial likelihood of irreparable misidenti-fication, then the reliability of an in-court identification is for the jury to weigh.
State v. Arguello, 502 N.W.2d 548, 552-553 (S.D.1993) (quoting State v. Hanson, 456 N.W.2d 135, 138 (S.D.1990) (citations omitted)).
[¶ 17.] K.K. and V.N. attended the supper club trial where they heard Loftus testify on his behalf. Both victims recognized Loftus’ voice as that of their attacker. Loftus contends that the subsequent in-court identification of his voice by victims was unreasonably suggestive and therefore prejudicial.4 Critical to our inquiry is the partic[172] ipation, or lack thereof, of the State in the pretrial identification process at issue. Lof-tus argues that the necessary State involvement is present since the victims attended the earlier trial with a representative of the Victim’s Assistance Office. However, there is no evidence that any State officer arranged the pre-trial viewing for purposes of identifying Loftus’ voice. To the contrary, V.N. testified that nobody from the State’s Attorney’s Office, the Victim’s Assistance Office or any law enforcement agency encouraged her to attend the supper club trial for purposes of making a voice identification. See United States v. Stevens, 935 F.2d 1380, 1390 n. 11 (3rd Cir.1991) (“[I]n order to establish that a pre-trial confrontation was unduly suggestive, the defendant must first show that the government’s agents arranged the confrontation or took some action during the confrontation which singled out the defendant.”) (citation omitted); Reese v. Fulcomer, 946 F.2d 247, 259 (3rd Cir.1991); Thompson v. State of Mississippi, 914 F.2d 736, 738 (5th Cir.1990); United States v. Thevis, 665 F.2d 616, 643 (5th Cir.1982).
[¶ 18.] The record before us is void of any indication of improper State motive or influence.5 Both K.K. and V.N. voluntarily attended and observed a public trial. This [173] Court and the United States Supreme Court have recognized that the decision about whether a pre-trial identification was imper-missibly suggestive is primarily subjective. Iron Thunder, 272 N.W.2d at 301 (citations omitted). The trial court considered the totality of the circumstances and exercised its discretion to allow the in-court identification. We find no abuse of discretion.
[¶ 19.] 3. Whether the trial court abused its discretion in admitting statistical DNA evidence?
[¶ 20.] We have consistently stated that the trial court has broad discretion concerning evidentiary rulings, is presumed correct and will not be reversed absent a clear showing of abuse of such discretion. Bland v. Davison County, 1997 SD 92, ¶ 57, 566 N.W.2d 452, 466; State v. Goodroad, 1997 SD 46, ¶ 9, 563 N.W.2d 126, 129; State v. Hill, 463 N.W.2d 674, 676 (S.D.1990).
[¶ 21.] In State v. Hofer, we departed from adherence to the former Fryé6 rule requiring general acceptance in the scientific community and adopted the new standard set forth by the United States Supreme Court in Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579, 589, 113 S.Ct. 2786, 2794, 125 L.Ed.2d 469, 480 (1993). 512 N.W.2d 482, 484 (S.D.1994) (citation omitted); State v. Schweitzer, 533 N.W.2d 156, 159 (S.D.1995). The Daubert standard requires the trial court to ensure that an expert’s testimony both “rests on a reliable foundation and is relevant to the task at hand. Pertinent evidence based on scientifically valid principles will satisfy those demands.” Kuper v. Lincoln-Union Elec. Co., 1996 SD 145, ¶ 40, 557 N.W.2d 748, 760 (citing Hofer, 512 N.W.2d at 484) (quoting Daubert, 509 U.S. at 597, 113 S.Ct. at 2799, 125 L.Ed.2d at 485). In Dau-bert, the United States Supreme Court offered some of the factors to be considered when determining the admissibility of expert scientific testimony: (1) it has been tested; (2) it has been subjected to peer review and publication; (3) the known or potential rate of error must be known; and (4) to what extent it has received general acceptance. 509 U.S. at 592-93, 113 S.Ct. at 2796, 125 L.Ed.2d at 482-83.
[¶ 22.] The foundation of the Daubert rule is located in Federal Rule of Evidence 702 and was adopted in SDCL 19-15-2 which provides:
If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education, may testify thereto in the form of an opinion or otherwise.
(Emphasis added). The Supreme Court has elucidated upon the language contained in Federal Rule 702 as follows:
The adjective “scientific” implies a grounding in the methods and procedures of science. Similarly, the word “knowledge” connotes more than subjective belief or unsupported speculation. The term “applies to any body of known facts or to any body of ideas inferred from such facts or accepted as truths on good grounds.” Webster’s Third New International Dictionary 1252 (1986). Of course, it would be unreasonable to conclude that the subject of scientific testimony must be “known” to a certainty; arguably, there are no certainties in science.
Daubert, 509 U.S. at 590, 113 S.Ct. at 2795, 125 L.Ed.2d at 481.
[¶23.] Loftus, while conceding that Liberty possesses expert qualifications in DNA matching techniques, argues that Liberty was not qualified to give statistical probability DNA opinion because he is not a population geneticist. The trial court first became aware of Liberty’s qualifications at a DNA suppression hearing held on March 13, 1996. Theré was ample evidence before the trial court that Liberty possessed expert qualifications in the area of DNA, which would include statistical DNA probability analysis.7 See State v. Edmundson, 379 [174] N.W.2d 835, 839 (S.D.1985) (trial court’s exercise of discretion in allowing a witness to testify as an expert will not be overturned on appeal unless “there is no evidence that the witness had the qualifications of an expert”). Furthermore, calculations determining statistical probabilities are basic to DNA analysis. United States v. Davis, 40 F.3d 1069 (10th Cir.1994). Therefore, we find no abuse of discretion.
[¶ 24.] The thrust of Loftus’ DNA argument rests upon the admission of statistical DNA evidence which, he contends, is based upon an unreliable foundation. Loftus claims there is a great deal of uncertainty within the scientific community concerning the “product rule” method of obtaining statistical probabilities. Loftus’ trial expert, Laurence Mueller, testified that the product rule fails to take into consideration the cross-mating of our population which then form subgroups. Thus, since Loftus is of Native American and Hispanic heritage, Liberty’s statistical probability calculation step of the DNA analysis using a major population database (Caucasian, African American and American Indians) was flawed.
[¶25.] Furthermore, Loftus argues that Liberty’s database of . between 200 and 800 individuals was too limited because it failed to take into account his individual population subgrouping (i.e., Native American and Hispanic ethnicity). The relatively scant authority cited in Loftus’ brief correctly identifies the debate that was present in the scientific community concerning DNA statistical evidence in the early 1990’s.8 However, since that time an overwhelming amount of scientific commentary and legal authority exist indicating the dispute has been resolved and the “product rule method of DNA statistical evidence is now generally accepted in the relevant scientific community.”9 This calming of the product rule debate is attributable, in part, to the results obtained from the FBI’s completion of an exhaustive worldwide population survey which laid to rest the idea that “population subgrouping affected DNA probability estimates to a defendant’s disadvantage.” See United States Department of Justice, Federal Bureau of Investigation, I-A VNTR Population Data: A Worldwide Study (1993) (FBI Study), (cited in People v. [175] Dalcollo, 282 Ill.App.8d 944, 218 Ill.Dec. 435, 445, 669 N.E.2d 378, 388 (1996)). The study concluded that the estimate of the “current practice of employing the product rule and using general population databases is reliable, valid, and meaningful, without foren-sicaUy significant consequences.” FBI Study, at 2; Id. In addition, the weight of authority in the scientific community supports the proposition that “differences due to ethnicity or substructuring have little impact on DNA population frequency estimates and that the product rule is appropriate to estimate probabilities of a random match.” People v. Amundson, 41 Cal.Rptr.2d 127, 138 (Cal.Ct.App.), review granted, 43 Cal.Rptr.2d 827, 899 P.2d 896 (Cal.1995); Chandler, 211 Mich.App. at 610-611, 536 N.W.2d 799; People v. Marlow, 41 Cal.Rptr.2d 5, 33 (1995) (citations omitted); State v. Brown, 470 N.W.2d 30 (Iowa 1991); Armstead v. State, 342 Md. 38, 673 A.2d 221, 240 (1996) (citations omitted).
[¶26.] After an extensive review of the record, relevant case law and scientific literature, we agree that the product rule method of analyzing DNA statistical evidence rests upon a reliable foundation. Upon completion of an extensive direct and cross-examination of Liberty at the pre-trial DNA suppression hearing, the trial court was satisfied that the DNA procedures utilized by Precision Genetics rested on a reliable foundation and would assist the trier of fact. See Kuper, 1996 SD 145 ¶ 41, 557 N.W.2d at 760 (When the trial court is ruling on the admissibility of purported expert opinion, the trial court “needs to exercise its gatekeeping function.”) The record is clear that the trial court fulfilled its “gatekeeper” duties prior to admission of the Precision Genetic DNA evidence. Therefore, any evidentiary attack at trial is relevant to its weight and not its admissibility. See Davis, 40 F.3d at 1074; United States v. Bonds, 12 F.3d 540, 564-565 (6th Cir.1993); Marlow, 41 Cal.Rptr.2d at 32; Chandler, 536 N.W.2d at 802; Brown, 470 N.W.2d at 32; State v. Morel, 676 A.2d 1347, 1355 (R.I.1996). In making this ruling, we note that the benefit of the product rule method of statistical probability analysis evidence applies equally to the defense as well as the prosecution. Because such results may indicate the likelihood that a defendant was not the perpetrator of a crime, statistical DNA evidence may provide a source of exculpatory evidence. State v. Moeller, 1996 SD 60, ¶ 69, 548 N.W.2d 465, 483.
[¶ 27.] We have thoroughly considered Lof-tus’ additional claims and find them to be without merit.
[¶ 28.] Affirmed.
[¶ 29.] MILLER, C.J., and AMUNDSON, J., concur.
[¶ 30.] SABERS and KONENKAMP, JJ., concur in result.