PER CURIAM.

The Immigration and Nationality Act authorizes the Attorney General to grant an alien asylum if the alien cannot return to another country because of "persecution or a well-founded fear of persecution on account of race, religion, nationality, membership in a particular social group, or political opinion." § 101(a)(42)(A), as added, § 201, 94 Stat. 102, 8 U.S.C. § 1101(a)(42)(A) (emphasis added). The respondents, Michelle Thomas and her immediate family, applied for asylum. They checked boxes on the application form that indicated their claim rested upon fear of persecution in their native South Africa because of (1) their "political opinion[s]," and (2) their "membership in a particular social group." In proceedings before the Immigration Judge, they emphasized their fear of persecution because of their race (they are white) and their kinship with Michelle's father-in-law, "Boss Ronnie," a white South African who allegedly held racist views and mistreated black workers at the company at which he was a foreman. The Immigration Judge, focusing upon questions of race and political views, rejected their claim. And the Board of Immigration Appeals (BIA), responding to the Thomases' primarily race-related arguments, summarily affirmed that decision.

On review, a Ninth Circuit panel held by a 2-to-1 vote that the BIA had not adequately considered the Thomases' claim of persecution because of "membership in a particular social group, as relatives of Boss Ronnie." Thomas v. Ashcroft, 359 F. 3d 1169, 1177 (2004). The Ninth Circuit took the matter en banc. The en banc court, overruling what it considered aberrant contrary Circuit precedent, unanimously held that in principle "a family may constitute a social group for the purposes of the refugee statutes." 409 F. 3d 1177, 1187 (2005) (emphasis added) (overruling, inter alia, Estrada-Posadas v. INS, 924 F. 2d 916 (CA9 1991)). In so doing, the court relied on earlier BIA opinions holding that certain "kinship ties" fall within the statutory term. See 409 F. 3d, at 1180, 1184-1186.

The court then went on to hold, over the dissent of four judges, that the particular family at issue, namely "`persons related to Boss Ronnie,'" fell within the scope of the statutory term "particular social group" and that the "Thomases were attacked and threatened because they belong to the particular social group of `persons related to Boss Ronnie'. . . ." Id., at 1189. The dissenting judges argued that the question "whether the Thomases are a `particular social group'" should first be considered by the relevant administrative agency. Id., at 1193 (opinion of Rymer, J.) (emphasis in original). And they said that the majority's contrary decision was inconsistent with this Court's holding in INS v. Orlando Ventura, 537 U.S. 12, 18 (2002) (per curiam).

The Solicitor General now asks us to grant certiorari to consider whether the Ninth Circuit "erred in holding, in the first instance and without prior resolution of the questions by the" relevant administrative agency, "that members of a family can and do constitute a `particular social group,' within the meaning of" the Act. Pet. for Cert. I. He argues that a court's role in an immigration case is typically one of "`review, not of first view.'" Id., at 29 (quoting Cutter v. Wilkinson, 544 U.S. 709, 718, n. 7 (2005)). He adds that the decision clearly violates what this Court described in Ventura as the "`ordinary "remand" rule.'" Pet. for Cert. 15 (quoting Ventura, supra, at 18). And he concludes that "the Ninth Circuit's error is so obvious in light of Ventura that summary reversal would be appropriate." Pet. for Cert. 29.

We agree with the Solicitor General. The Ninth Circuit's failure to remand is legally erroneous, and that error is "obvious in light of Ventura," itself a summary reversal.

The alien in Ventura sought asylum on grounds of a reasonable fear of "persecution" in Guatemala "`on account of . . . [a] political opinion.'" 537 U.S., at 13. The BIA held that the alien did not qualify for asylum because whatever persecution he faced when he left Guatemala in 1993 was not on account of a "`political opinion.'" Ibid. The Ninth Circuit reversed, holding that the record showed that in 1993 the alien did indeed face politically based persecution in Guatemala. The Circuit then went on to consider the Government's alternative argument — that, in any event, conditions within Guatemala had improved to the point that political persecution was no longer likely. Ibid. And the Circuit rejected this "`changed circumstances'" claim without first giving the agency an opportunity to consider the matter. Id., at 14.

We reversed the Ninth Circuit summarily. We pointed out that "[w]ithin broad limits the law entrusts the agency to make the basic asylum eligibility decision." Id., at 16. "In such circumstances," we added, a "`judicial judgment cannot be made to do service for an administrative judgment.'" Ibid. (quoting SEC v. Chenery Corp., 318 U.S. 80, 88 (1943)). "A court of appeals `is not generally empowered to conduct a de novo inquiry into the matter being reviewed and to reach its own conclusions based on such an inquiry.'" Ventura, supra, at 16 (quoting Florida Power Light Co. v. Lorion, 470 U.S. 729, 744 (1985)). "Rather, `the proper course, except in rare circumstances, is to remand to the agency for additional investigation or explanation.'" Ventura, supra, at 16 (quoting Florida Power Light Co., supra, at 744; citing SEC v. Chenery Corp., 332 U.S. 194, 196 (1947)). Applying these "basic legal principles," we concluded that "every consideration that classically supports the law's ordinary remand requirement does so here." Ventura, 537 U.S., at 16, 17.

We must reach the same conclusion in the present case. The agency has not yet considered whether Boss Ronnie's family presents the kind of "kinship ties" that constitute a "particular social group." The matter requires determining the facts and deciding whether the facts as found fall within a statutory term. And as we said in Ventura:

"The agency can bring its expertise to bear upon the matter; it can evaluate the evidence; it can make an initial determination; and, in doing so, it can, through informed discussion and analysis, help a court later determine whether its decision exceeds the leeway that the law provides." Id., at 17.

We can find no special circumstance here that might have justified the Ninth Circuit's determination of the matter in the first instance. Thus, as in Ventura, the Court of Appeals should have applied the "ordinary `remand' rule." Id., at 18.

We grant the petition for certiorari. We vacate the judgment of the Court of Appeals. And we remand the case for further proceedings consistent with this opinion.

It is so ordered.