Was dred Scott's civil rights violated?

Yes, Dred Scott's civil rights were violated in the landmark case Dred Scott v. Sandford (1857). The U.S. Supreme Court ruled that African Americans, whether enslaved or free, could not be American citizens and therefore lacked the standing to sue in federal court. This decision effectively denied Scott and others like him basic legal protections and rights, reinforcing the institution of slavery and institutional racism in the United States.