Pete Hernandez, a migrant worker, was tried for the murder of his employer, Joe Espinosa, in Edna, Texas, in 1950. Hernandez was convicted by an all-white jury. His lawyers appealed. They argued that Hernandez was entitled to a jury “of his peers” and that systematic exclusion of Mexican Americans violated constitutional law. In a unanimous decision, the United States Supreme Court ruled that Mexican Americans—and all “classes”—were entitled to the “equal protection” articulated in the Fourteenth Amendment.

The petitioner, Pete Hernandez, was indicted for the murder of one Joe Espinosa by a grand jury in Jackson County, Texas. He was convicted and sentenced to life imprisonment. The Texas Court of Criminal Appeals affirmed the judgment of the trial court. Prior to the trial, the petitioner, by his counsel, offered timely motions to quash the indictment and the jury panel. He alleged that persons of Mexican descent were systematically excluded from service as jury commissioners, grand jurors, and petit jurors, although there were such persons fully qualified to serve residing in Jackson County. The petitioner asserted that exclusion of this class deprived him, as a member of the class, of the equal protection of the laws guaranteed by the Fourteenth Amendment of the Constitution. …

In numerous decisions, this Court has held that it is a denial of the equal protection of the laws to try a defendant of a particular race or color under an indictment issued by a grand jury, or before a petit jury, from which all persons of his race or color have, solely because of that race or color, been excluded by the State, whether acting through its legislature, its courts, or its executive or administrative officers. Although the Court has had little occasion to rule on the question directly, it has been recognized since Strauder v. State of West Virginia, that the exclusion of a class of persons from jury service on grounds other than race or color may also deprive a defendant who is a member of that class of the constitutional guarantee of equal protection of the laws. The State of Texas would have us hold that there are only two classes–white and Negro–within the contemplation of the Fourteenth Amendment. The decisions of this Court do not support that view. And, except where the question presented involves the exclusion of persons of Mexican descent from juries, Texas courts have taken a broader view of the scope of the equal protection clause.

Throughout our history differences in race and color have defined easily identifiable groups which have at times required the aid of the courts in securing equal treatment under the laws. But community prejudices are not static, and from time to time 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. The Fourteenth Amendment is not directed solely against discrimination due to a “two-class theory”–that is, based upon differences between “white” and Negro.

… The exclusion of otherwise eligible persons from jury service solely because of their ancestry or national origin is discrimination prohibited by the Fourteenth Amendment. …

The petitioner’s initial burden in substantiating his charge of group discrimination was to prove that persons of Mexican descent constitute a separate class in Jackson County, distinct from “whites.” One method by which this may be demonstrated is by showing the attitude of the community. Here the testimony of responsible officials and citizens contained the admission that residents of the community distinguished between “white” and “Mexican.” The participation of persons of Mexican descent in business and community groups was shown to be slight. Until very recent times, children of Mexican descent were required to attend a segregated school for the first four grades. At least one restaurant in town prominently displayed a sign announcing “No Mexicans Served.” On the courthouse grounds at the time of the hearing, there were two men’s toilets, one unmarked, and the other marked “Colored Men” and “Hombres Aqui” (“Men Here”). …

Having established the existence of a class, petitioner was then charged with the burden of proving discrimination. To do so, he relied on the pattern of proof established by Norris v. State of Alabama. In that case, proof that Negroes constituted a substantial segment of the population of the jurisdiction, that some Negroes were qualified to serve as jurors, and that none had been called for jury service over an extended period of time, was held to constitute prima facie proof of the systematic exclusion of Negroes from jury service. This holding, sometimes called the “rule of exclusion,” has been applied in other cases, and it is available in supplying proof of discrimination against any delineated class.

The petitioner established that 14% of the population of Jackson County were persons with Mexican or Latin American surnames, and that 11% of the males over 21 bore such names. The County Tax Assessor testified that 6 or 7 percent of the freeholders on the tax rolls of the County were persons of Mexican descent. The State of Texas stipulated that “for the last twenty-five years there is no record of any person with a Mexican or Latin American name having served on a jury commission, grand jury or petit jury in Jackson County.” The parties also stipulated that “there are some male persons of Mexican or Latin American descent in Jackson County who, by virtue of being citizens, freeholders, and having all other legal prerequisites to jury service, are eligible to serve as members of a jury commission, grand jury and/or petit jury.”

…

To say that this decision revives the rejected contention that the Fourteenth Amendment requires proportional representation of all the component ethnic groups of the community on every jury ignores the facts. The petitioner did not seek proportional representation, nor did he claim a right to have persons of Mexican descent sit on the particular juries which he faced. His only claim is the right to be indicted and tried by juries from which all members of his class are not systematically excluded–juries selected from among all qualified persons regardless of national origin or descent. To this much, he is entitled by the Constitution.

[Source: Hernandez v. Texas, 347 U.S. 475 (1954).]