The above-captioned cases were consolidated for consideration of defendants’
Issues
Defendants Bishop and Salazar allege that Chicanos, blacks, and persons under forty years of age were “substantially underrepresented” on the master jury wheel in use during 1969 and early 1970 and that neither the grand nor petit juries drawn from that wheel were “selected at random from a fair cross section of the community” as required by the Act and the fifth and sixth amendments to the United States Constitution. Similar challenges are raised by the remaining defendants (hereafter collectively referred to as the “Test” defendants) with respect to the underrepre-sentation of Chicanos and blacks on the master jury wheel in use from January 1972 through December 1974.
I. Underrepresentation of Chicanos and Blacks.
A. The Colorado Jury Selection Plan.
As required by section 1863(b)(2) of the Act, the Colorado jury selection plan utilizes voter registration lists as the initial source of names for potential jurors. Names are selected from these lists at fixed intervals and placed into a master jury wheel, from which the qualified jury wheel is in turn selected at random. Defendants concede this selection process is mathematically random and the demographic composition of the master jury 'wheel accurately reflects the composition of the voter registration lists.
B. Defendants' Evidence.
Defendants’ evidence on these issues for the periods in question consisted of judicially-noticed figures from the 1970 census, statistical abstracts compiled by defendants from the qualification questionnaires returned by prospective jurors, and expert testimony on the statistical significance of this data. This evidence may be summarized in the following tables:
Setting aside for the moment the government’s attempt to discredit these figures,
C. The Statutory and Constitutional Standards.
Section 1861 of the Act provides:
It is the policy of the United States that all litigants in Federal courts entitled to trial by jury shall have the right to grand and petit juries selected at random from a fair cross section of the community in the district or division wherein the court convenes. .
28 U.S.C. § 1861 (emphasis added). This “policy” is implemented by the requirement of section 1862 that “[n]o citizen shall be excluded from service as a grand or petit juror in the district courts of the United States on account of race, color, religion, sex, national origin, or economic status.” Section 1863(b)(2) directs the district courts to use voter registration lists or lists of actual voters as the initial sources of names for prospective jurors, with the former being the “preferred” source, and to “prescribe some other source or sources of names in addition to voter lists where necessary to foster the policy and protect the rights secured by sections 1861 and 1862.” (Emphasis added).
The legislative history of the Act makes it clear that in enacting the above-quoted statutes Congress intended to allow some deviation from an exact demographic reflection of the community and that only “great” or “pronounced” disparities were to be remedied by supplementation. See, e. g., 114 Cong.Ree. 1348 (remarks of Congressman Kastenmeir). Thus instead of prescribing an objective statutory standard of “necessity” for determining when supplementation of voter lists was required, Congress deferred this decision to the courts:
The voting list need not perfectly mirror the percentage structure of the community. But any substantial deviations must be corrected by use of supplemental sources. Your committee would leave the definition of substantial to the process of judicial decision.
S.Rep.No.891, 90th Cong., 1st Sess. at 17 (1967).
Although the Supreme Court has not directly considered the issue, the majority of lower federal courts have responded to this congressional mandate by construing the statutory “fair cross section” standard as the functional equivalent of the constitutional “reasonably representative” standard previously developed. E. g., United States v. Whiting, 8 Cir.,
The unmistakable import of this Court’s opinions, at least since 1940, . and not repudiated by intervening decisions, is that the selection of a petit jury from a representative cross section of the community is an essential component of the Sixth Amendment right to a jury trial. Recent federal legislation governing jury selection within the federal court system [The Jury Selection and Service Act of 1968] has a similar thrust. .
We accept the fair-cross-section requirement [of the Act] as fundamental to the jury trial guaranteed by the Sixth Amendment and are convinced that the requirement has solid foundation. .
Taylor v. Louisiana,
. the jury wheels, pools of names, panels, or venires from which juries are drawn must not systematically exclude distinctive groups in the community and thereby fail to be reasonably representative thereof.
Id. at 538,
1. Cognizability
With respect to the first of these requirements, the district court “presumed” blacks comprised a distinct class in the Colorado community. In the absence of specific evidence of local prejudice directed toward Chícanos,
2. Systematic Exclusion.
Assuming defendants satisfied the requirement of showing blacks and Chícanos constituted distinctive groups, defendants still had the burden of proving that these groups were “systematically excluded” from the jury selection process. Two lines of Supreme Court cases have been found in which allegations of systematic exclusion have proven successful. In the so-called “rule of exclusion” cases, proof that a cognizable group had been totally excluded from jury service over a substantial period of time or had received only “token representation” has been held sufficient to raise an inference of discrimination and systematic exclusion. E. g., Taylor v. Louisiana, supra; Alexander v. Louisiana,
Likewise, in cases where ther'e has been a showing of “substantial underrepresentation” (short of total exclusion) or “systematic decimation” of a cognizable group at the various stages of the selection process combined with “obvious opportunities for discrimination,” the Court has been willing to infer discrimination in the selection process. E. g., Turner v. Fouche,
In the present cases, defendants conceded that blacks and Chícanos had not been totally excluded from the selection process and that their representation was more than token. Defendants likewise admitted that no evidence of “systematic decimation” or “obvious opportunities for discrimination” had been discovered in the selection process. Moreover, although defendants did allege that Chicanos and blacks, for a variety of reasons, failed to register to vote in the same percentages as whites, no evidence was presented indicating that different registration standards were applied to whites and non-whites or that the state had erected affirmative barriers to or deliberately interfered with the registration process.
Defendants urge on appeal that this statistical disparity alone was sufficient to support the inference that blacks and Chí-canos had been systematically excluded from the jury selection process and that the burden should therefore have shifted to the government to prove by specific evidence that the underrepresentation was produced by constitutionally permissible selection procedures. We have been cited to no case, however, in which a jury selection challenge based solely on statistical evidence has been successful. To the contrary the only case cited by the parties or disclosed by our research in which a similar question was considered by the Supreme Court is Swain v. Alabama,
In Swain a black defendant demonstrated that although 26% of the males over 21 in the county were black, only 10% to 15% of the grand and petit jury panels over a substantial period of years had been black.
In the present cases the maximum disparity demonstrated by defendants between the percentages of blacks and Chicanos in the voting-age community and on the master jury rolls was approximately 4%. Since this figure is well below the 10-16% range of disparity approved in Swain, the district court properly concluded defendants had failed to establish a prima facie case of systematic exclusion and accepted the government’s general explanations and asseverations of good faith in rebuttal.
In light of our conclusion that defendants failed to establish a prima facie case of systematic exclusion, it is unnecessary to consider whether this alleged exclusion “caused” the jury panels to “fail to be reasonably representative” of the community as would appear to be required by the Supreme Court’s language in Taylor v. Louisiana, supra, and as in fact required by the district court. Nor need we decide at this juncture the validity of defendants’ contention that a showing of causation is superfluous and that a demonstration of substantial underrepresentation of a cognizable group on the master jury wheel necessarily entails a showing that panels selected from that wheel were not reasonably representative of the community.
D. Defendants’ Alternative Claims.
Defendants contend, however, that the 10-16% absolute disparity standard approved in Swain cannot be dispositive of the present cases since blacks and Chicanos comprise less than 10% of the voting-age population in Colorado. Moreover, even if Swain is controlling on the constitutional challenge, defendants assert the Act created a different and higher statutory standard, imposing an affirmative duty on the district court to supplement the voter registration lists whenever a “substantial failure” to comply with its “fair cross section” requirement is demonstrated, irrespective of the cause of the misrepresentation.
Defendants’ observations that the black and Chicano communities in Colorado are considerably smaller than the black community considered in Swain and that Swain was decided prior to passage of the Act are valid distinctions. However, in light of the determinations of the majority of federal courts that the statutory and constitutional standards are functional equivalents and the fact that Swain remains the only pronouncement of the Supreme Court regarding the degree of underrepresentation necessary to support a prima facie case of systematic exclusion in the absence of obvious opportunities for discrimination, Swain must be afforded highly persuasive, if not controlling, significance. It is not necessary for us to base our decision solely on these grounds, however, since even if the hypothesis of a stricter statutory standard is accepted defendants still failed to meet their burden of proof.
Defendants have cited us to decisions in two circuits which appear to have adopted a bifurcated standard for constitutional and statutory jury selection challenges. United States v. Jenkins, 2 Cir.,
Id. Although defendants have questioned some of the district court’s calculations, even if we were to accept defendants’ figures the disparities demonstrated in the present cases would still be within the limits set by Jenkins and Goff and well below the range of disparity approved in Swain.
Defendants nevertheless complain these comparisons are “a classic example of the visceras of the Second and Fifth Circuits leading the viscera of the District of Colorado.” Defendants have been unable to cite us to any precedent in support of their position, however, and overlook the fact that their suggested “standardized” approaches merely present alternative methods of measuring departures from a statistically ideal cross section of the community.
We cannot say in the present cases that disparities of less than one person in the demographic composition of petit and grand juries are “substantial” or that a difference of two persons on a jury panel of fifty persons is a “gross” or “marked” disparity.
II. The Additional Challenges of Bishop and Salazar.
The remaining challenges presented by defendants Bishop and Salazar are essentially cumulative in nature in that the basic allegations of underrepresentation and suggested standards of “substantiality” are the same as those previously discussed. In each instance, however, a different group is substituted for the allegedly aggrieved parties, viz., persons under forty, persons residing in the judicial district for less than one year, persons convicted or under indictment for serious crimes, persons not literate in the English language, persons residing in certain divisions of the district, women with custody of children under ten years of age, sole proprietors, and persons without transportation. These challenges were extensively considered by the district court and found to be without merit either because the exemption was specifically prescribed by the Act (the constitutionality of which was unchallenged), the group in question did not comprise a “cognizable” class in the community, or the alleged underrepresentation was not “substantial” under the standards set forth above. As defendants have advanced no new arguments and all cited and subsequent authorities support the judgment of the trial court on these issues, we adopt and set out the applicable portions of the trial court’s unpublished opinion and affirm for the reasons stated by Chief Judge Arraj therein.
“II. The Underrepresentation of Persons Under Forty
“Movants have collected data which they contend demonstrate a gross
(1) the presence of some quality or attribute which ‘defines and limits’ the group;
(2) a cohesiveness of ‘attitudes or ideas or experience’ which distinguishes the group from the general social milieu; and (3) a ‘community of interest’ which may not be represented by other segments of society. [United States v. Test, supra at (689), slip opinion at 6]
There is no evidence in the record before us suggesting that persons between the ages of twenty-one and thirty-nine hold attitudes which are distinctive from those held by the rest of the population. Indeed, movants have offered no evidence concerning any of the three factors just enumerated. Although the cognizability of certain groups may be presumed or inferred from evidence other than these factors [see United States v. Test, supra at (689), slip opinion at 6], this is not the case where the groups are ‘created’ by arbitrarily subdividing the population into age classification. [See, e. g., United States v. Olson, 743 [473] F.2d 686 (8th Cir.), cert. denied,
“Movants seek to distinguish their case from the cited precedents on the ground that the ‘group’ in question here is relatively large (47.85% of the eligible population). They argue that where an age group is this large it may be held ‘cognizable’ even without proof of uniqueness of attitudes or of any other elements normally required to establish cognizability. Our research discloses only one reported decision which supports this argument, United States v. But-era,
“This rather difficult principle is best understood by example. Assume we have drawn a sample from a jury wheel and have divided it into the same twelve age groups originally used in Butera. We then compare the number of prospective jurors in each age group with the number we would expect based on census figures. Assume further that the first group (21 to 24) is underrepresented, that the second group (25 to 29) is overrepresented, that the third group (30 to 35) is underrepresented, and that the results for each successive group alternates from overrepresentation to un-derrepresentation. It should be obvious that we cannot ‘collapse’ the data for these subgroups into any larger composite groups. If we did, we would have one group comprised of persons between the ages of 21 and 24, 30 and 34, 40 and 44, 50 and 54, 60 and 64, and 70 and 74, while the other group would include those between 25 and 29, 35 and 39, 45 and 49, 55 and 59, 65 and 69, and 75 or over. These would not be ‘groups’ at all, but rather mathematical artifacts.
“This is precisely what movants in the present controversy have done. Their data for age groups are summarized in the following Table.
What is critical about these data is that the jury wheels of this district are a nearly perfect mirror of the community for those persons between 30 and 39 years of age. This ‘subgroup’ is neither underrepresented nor overrepresented, but there are appreciable disparities for the 21 to 29 year old subgroup and for the over 40 subgroup. What movants have done here is ‘collapse’ the data for the 21 to 29 year old group (which is underrepresented) with the data for the 30 to 39 year old group (which is not underrepresented), thereby creating a composite of all persons between the ages of 21 and 39. But this composite does not have internal consistency, and its constituent subgroups do not represent a continuum of either underrepresentation or overrepresen-tation. Put more simply, the age group which is underrepresented, according to
Defendant has not explained why he has selected the age of 30 as a cut-off rather than the age of 26 or 33. He has presented no rationale for his age grouping. The mere fact of similarity in age cannot, by itself, be sufficient to define a cognizable group. If it were, any jury selection system could be successfully attacked by a strategic drawing of age group lines.
Among any age group there will be vast variations in attitudes, viewpoints, and experiences. The fact that two persons are the same age does not necessarily give them a community of interest. And although we hear much talk of the “generation gap,” it is impossible to define that gap with any precision, as the defendant has tried to do.
In accordance with the long line of cases cited above, this court cannot accept the proposition that members of arbitrarily drawn age brackets necessarily constitute valid categories for measuring the legality of a jury selection system. [337 F.Supp. at 146 (emphasis added)]
We will not accept movants strategic manipulation of their data for the sole purpose of fabricating a ‘group’ of such size as to circumvent the normal evidentiary requirements of cognizability. Of course, it is possible to analyze the underrepresentation of the 21 to 29 year old group in terms of controlling constitutional and statutory principles, but under the precedents cited above, this group is not sufficiently large to permit any inference of cognizability without proof of distinctive attitudes held by its members and of the other factors described earlier. [See especially United States v. Briggs,
“Upon the foregoing, we hold that mov-ants have not made a prima facie showing that persons under 40 years of age are a cognizable group. Consequently, movants’ constitutional and statutory claims based on the alleged underrepresentation of this ‘group’ must be rejected.
“HI. Excuses, Exemptions, and Disqualifications
“Movants have also mounted a two-pronged assault on the juror excuse, exemption, and disqualification procedures used in this district. First, they charge that the categories of excuses, exemptions, and disqualifications are on their face violative of 28 U.S.C. § 1861, which requires ‘random selection’ of jurors. Second, they allege that the categories ‘have been administered in a haphazard and arbitrary fashion, thus preventing the securance of a jury drawn from a fair cross section of the community >
“Specifically, movants observe that at the time of their indictments and at the time of Salazar’s trial, persons between the ages of 18 and 21 were not eligible for jury service in this district. It is true that the jury plan did exclude such persons, but it did so pursuant to the statute then in force [28 U.S.C. § 1865(b)(1) (1970)], and the constitutionality of this statute was uniformly upheld. [See, e. g., United States v. McVean,
7 We note parenthetically that in conformance with § 3(a) of Pub.L. 92-269, the master jury wheels in this district were refilled fromthe 1972 voter registration list, which reflected the registration of 18 to 20 year olds who had been enfranchised by ratification of the Twenty-sixth Amendment. The wheels were refilled before the September 1, 1973 deadline imposed by the statutory amendment.
“Next, movants challenge the exclusion of persons who have not resided within the district for at least one year. This provision of the district’s jury plan is also authorized by statute [28 U.S.C. § 1865(b)(1)], and this section has also withstood constitutional attack. [See, e. g., United States v. Gast, supra at 142-43]8
8 Movants do not suggest that they possess standing to assert any ‘right to travel’ claim which belong to those persons who are excluded from jury service by the one-year residency requirement. [See also United States v. Grey,355 F.Supp. 529 , 533 (W.D.Okl.1973)]
“Pursuant to 28 U.S.C. § 1865(b)(5), the jury plan excludes all persons who have a charge pending agamst them for the commission of a criminal offense punishable by imprisonment for more than one year. This ‘disqualification is intended to assure the “probity” of the jury.’ [United States v. Arnett, supra at 1261] The reasons for movants’ challenge to this provision are beyond our comprehension.
“The fourth ground for attack is that the plan effectively excludes from pet-it jury service all persons who reside in the Pueblo and Grand Junction divisions, because the vast majority of the trials in this district are held in the Denver division. But the partitioning of a district into jury divisions is sanctioned by the statute [28 U.S.C. §§ 1863(a) and 1869(c)], and is clearly not unconstitutional, absent evidence that some cognizable group has been systematically excluded by ‘gerrymandering’ the division lines. [See United States v. Test, supra at (686), slip opinion at 3 n.2; see also United States v. Ponder,
“Movants also contest the plan’s disqualification of persons unable to read, write and understand the English language with sufficient proficiency to complete the juror qualification form. This provision is mandated by the Act. [28 U.S.C. § 1865(b)(2); see also United States v. Tijerina,
“Movants’ next contention is that under the jury plan certain classes of persons are automatically excused from jury service upon request without a specific factual showing of ‘undue hardship or extreme inconvenience.’ These classes include: (1) women who have legal custody of a child or children under the age of ten years; (2) sole proprietors; and (3) persons who do not have transportation available to attend court sessions. Apparently, movants believe that the statutory declaration of policy in 28 U.S.C. § 1861 precludes this district from excusing members of any ‘describable,’ which is not to say legally cognizable, group. Such a construction is much too severe. The statute expressly permits the court to specify in its plan those groups of persons who shall be excused on individual requests and contemplates that such excuses will be granted without inquiring into the circumstances of each particular case. [28 U.S.C. § 1863(b)(5)] The presumption of ‘undue hardship or extreme inconvenience’ which attaches to specified groups is founded upon common sense and experience. So long as such excuse categories are reasonably defined and do not result in either ‘substantial underrepresentation’ or ‘systematic exclusion’ of some cognizable group or groups, then the categories are
“As regards sole proprietors and persons without adequate transportation, movants have offered no evidence tending to show the cognizability of these groups or the correlation of these groups to some other class of persons that is legally cognizable. The presumption of hardship and inconvenience which the plan attaches to these two groups is, in our view, reasonable. [See United States v. Grey,
“Similarly, excuses for women having custody of young children has been consistently upheld against statutory and constitutional challenges. [See, e. g., United States v. Eskew,
“The remaining excuse, exemption, and disqualification categories which mov-ants have attacked are all authorized by the Jury Selection and Service Act. As in the case of the claims discussed and rejected above, we have been offered no evidence that any of these categories result in substantial underrepresentation or systematic exclusion of any legally distinctive group. [See especially United States v. Grey, supra] Consequently, we reject these claims without further comment.
“The final issue raised by Bishop and Salazar relates to their allegations that the excuse, exemption, and disqualification categories have been administered in a ‘haphazard and arbitrary fashion.’ The only evidence offered in support of this claim is a group of juror qualification questionnaires, some of which were incorrectly coded by the jury clerks. But in none of these questionnaires was a prospective juror removed from the jury wheel when he or she was in fact qualified and not entitled to some excuse or exemption under the plan. We believe, and so hold, that the human errors in administration cited by movants here do not constitute a ‘substantial failure to comply with the provisions’ of the Jury Selection and Service Act. Moreover, movants have not endeavored to prove that these errors have excluded or caused the underrepresentation of any cognizable group. .
The judgment of the district court regarding each of the issues raised on appeal is therefore affirmed.
Notes
. All of the above-captioned cases, with the exception of Salazar v. United States, are direct appeals from federal criminal convictions. Salazar’s present appeal was commenced as a petition for writ of habeas corpus pursuant to 28 U.S.C. § 2255, after his original conviction for misapplication and conspiracy to misapply federally insured bank funds was affirmed by this court. United States v. Cooper, 10 Cir.,
Although Salazar did not raise his present challenges to the grand and petit juries on direct appeal, United States v. Cooper, supra, the district court correctly held that Salazar had not waived these claims since a timely motion attacking the jury selection plan was made at his original trial as required by section
These cases were heard by the court en banc on the single issue of the validity of the Colorado jury selection plan as a question common to the named appellants and numerous other appellants having pending appeals. Other appellate questions, if any, of particular defendants are not here decided and will be the subject of separate opinions.
. The Test defendants initially claimed that blacks, Chicanos, American Indians, students, young persons, poor women, and poor people were “systematically excluded” and “underrepresented” on the master jury wheel and at all subsequent stages of the jury selection process. Both at the evidentiary hearing and in their briefs on appeal, however, the Test defendants conceded that no “serial dilution” or “systematic decimation” of these groups had been discovered and that their evidence below and the issues prosecuted on appeal related solely to the alleged underrepresentation of Chicanos and blacks on the master jury wheel.
. The fact that defendants are not members of some of the allegedly excluded classes does not affect their standing to bring the present actions. Taylor v. Louisiana,
. The Colorado judicial district is divided into three divisions referred to as the Denver, Pueblo, and Grand Junction Divisions. Every seventy-fifth name is selected from the voter regis
Defendants have alleged, however, that the selection of every fiftieth name from the Grand Junction division and every seventy-fifth name from the two other divisions results in a “substantial overrepresentation” of the Grand Junction division on the master jury wheel. Mere geographical imbalance, absent evidence that an identifiable and cognizable segment of the community has been systematically excluded or underrepresented by reason of such imbalance, does not violate the statutory and constitutional requirement that the jury panel represent a “fair cross section ‘of the community’.” United States v. Lewis, 6 Cir.,
The Act grants the chief judge of the district court discretion to “fix the distance, either in miles, or in travel time, from each place of holding court beyond which prospective jurors residing shall, on individual request therefor, be excused,” Id., and the record indicates this discretion was properly exercised. Moreover, the practical effect of the alleged initial “overrepre-sentation” of the Grand Junction Division, when considered in conjunction with the disproportionate number of “travel hardship” excuse requests from that division, was a “qualified” jury wheel more accurately reflecting a “fair cross section of the community” than would have been obtained had every seventy-fifth name from each division been selected. We are therefore not prepared to reverse the judgment of the trial court on the basis of defendants’ unsupported, conclusory allegations of “overrepresentation.”
. The government attacked these figures on grounds they failed to account for intermarriages between whites and Chícanos resulting in acquisition or loss of a recognized Spanish surname or to account for the allegedly disproportionate impact of the juror qualification requirements set forth in 28 U.S.C. § 1865, on blacks and Chícanos.
The government also challenged these statistics on grounds they were compiled from the questionnaires sent to prospective jurors, rather than from the actual master jury lists, many of which were not returned and some of which contained no ethnic or racial designation. This contention is supported by reference to the affidavit of counsel for defendant Bishop which contains both the percentage representation of Chícanos derived from an examination of the actual master jury lists and the percentage representation of Chicanos derived from the completed questionnaires:
% on Master Jury List
% Shown on Questionnaires
Denver Grand Junction Pueblo
5.41 3.88 14.02
4.01 1.98 10.22
These comparisons indeed show a substantial margin of error. In light of our subsequent disposition of this issue, however, we will accept defendants’ figures for purposes of discussion.
. Prior to its most recent formulation of the standard to be applied in jury selection cases, Taylor, supra, the Supreme Court had required a showing of “purposeful discrimination” or deliberate and systematic exclusion.” E. g., Hamling v. United States,
[A] claim of discriminatory selection of jurors “necessarily requires a showing that a recognizable, identifiable .class of persons, otherwise entitled to be jury members, has been purposefully and systematically excluded from jury service.”
Id. at 377, citing Leggroan v. Smith, 10 Cir.,
There is some disagreement between the parties over the effect to be given the Supreme Court’s omission of the term “purposeful” in the Taylor formulation. Rather than enter this debate over the unexpressed intent of the Supreme Court, we will assume, without deciding, that defendants were only required to demonstrate a systematic, rather than a purposeful, exclusion of distinctive groups.
. The requirement that the class “excluded” comprise a “distinctive group[] in the community” is generally agreed to have originated in Hernandez v. Texas,
. . . other differences from the community norm may define other groups which need the same protection. Whether such a group exists within a community is a question of fact. When the existence of a distinct class is demonstrated, and it is further shown that the laws, as written or as applied, single out that class for different treatment not based on some reasonable classification, the guarantees of the Constitution have been violated.
Id. at 478,
Although decided under a fourteenth amendment equal protection claim, the Hernandez “cognizability” requirement has been consistently reaffirmed by the Supreme Court in cases involving fifth and sixth amendment challenges. E. g., Taylor, supra
. “[T]he circuits are in complete agreement that . . . neither the Act nor the Constitution require that a supplemental source of names be added to voter lists simply because an identifiable group votes in a proportion lower than the rest of the population.” United States v. Evans, 10 Cir.,
. Swain also proved no black had actually served on a petit jury in over ten years, Swain, supra, at 205,
. Without reviewing all of the government’s proffered explanations for the disparities demonstrated below, we note that in adopting the voter registration lists as the “preferred source” of names for prospective jurors, Congress not only intended to provide a relatively large and easily accessible source of names, but one to which all potential jurors would have equal access and which disqualified jurors solely on the basis of objective criteria. Nor was Congress unmindful of the initial “screening” function served by voter registration lists with respect to such requirements as citizenship, residency, and conviction of serious crimes. . In fact, with the exception of literacy in the English language, the voter registration requirements reach the same concerns as the requirements for jury service set forth in 28 U.S.C. § 1865(b). In the absence of any specific evidence regarding the disproportionate impact, if any, of these requirements on blacks and Chí-canos, we cannot conclude that the decision of Congress to adopt the voter registration lists as a preliminary screening device was unreasonable. Neither can we say that the district court erred in accepting the government’s conten
. The absolute impact standard is designed to evaluate “the difference that would result in the absolute racial composition of the venire as the result of the underrepresentation of blacks [or other cognizable groups] as voters.” Jenkins, supra, at 65. For example, if there were a 10% absolute differential between the proportion of blacks on the master jury wheels (5%) and the proportion in the voting aged population (15%), the impact on a jury panel of 50 persons would be 10% X 50 - 5 persons. In other words a jury panel "accurately” reflecting the demographic composition of the voting-aged population would contain 5 more black persons than a panel selected from the under-representative jury wheel.
. The absolute percentage difference is determined by subtracting the percentage of blacks on the jury rolls from the percentage of blacks in the voting-age population. For example if blacks comprised 15% of the voting-age population and 5% of the master jury wheels the absolute percentage difference would be 15% - 5% = 10%.
The comparative percentage difference is obtained by dividing the absolute percentage difference by the percentage of blacks in the voting-age community. 15%-5% = 10% -s-15% = 67%.
. Defendants advanced several, alternative, “objective,” standards which would purportedly provide “uniform statistical criterion” to replace the “visceral reactions” of the courts in determining whether juries have been selected at random from a fair cross section of the community. These suggested approaches have been extensively discussed elsewhere, “An Analysis of Jury Selection Decisions,” (Gewin, J.), appendix to Foster v. Sparks, 5 Cir.,
. In holding that the underrepresentation of blacks and Chícanos demonstrated by defendants is not substantial enough to warrant judicial intervention in a litigious context, however, we do not wish to be interpreted as condoning complacence on the part of the district courts in this circuit in their efforts to improve the representativeness of their jury selection plans, To the contrary, we encourage and commend the efforts which have been and are being made to evaluate additional source lists containing comparatively higher percentages of those groups presently underrepresented to some degree on the voter registrations lists.
