Cert Grant on Derivative-Sovereign-Immunity Appeals


June 4, 2025
By Bryan Lammon

The Supreme Court granted cert in GEO Group, Inc. v. Menocal. The case asks if defendants can immediately appeal from the denial of derivative sovereign immunity via the collateral-order doctrine. I wrote about the petition and the underlying circuit split earlier this year. And I wrote about the Tenth Circuit decision from which the petition stems last November.

I have not yet fully dug into derivative-sovereign-immunity appeals. But it seems to me like the Tenth Circuit was correct in holding that the rejection of this defense is not immediately appealable. The defense doesn’t seem to be all that separate from the merits. So even if it could be characterized as an “immunity”—and thus provides a protection from litigation—it still shouldn’t be appealable via the collateral-order doctrine.

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