Muth v. Frank, 412 F.3d 808 (7th Cir. 2005), was a case in which the United States Court of Appeals for the Seventh Circuit ruled that the denial to an individual of a writ of habeas corpus for violation of Wisconsin's laws criminalizing incest was not unconstitutional. The petitioners relied heavily on the Supreme Court's ruling in Lawrence v. Texas invalidating anti-sodomy laws two years prior, which the Seventh Circuit rejected.