In section 9 there are three limitations on the power of congress to deny the people rights. What are three limitations?

In Section 9 of the U.S. Constitution, three key limitations on Congress's power to deny rights include the prohibition of suspending the writ of habeas corpus, which protects individuals from unlawful detention; the ban on passing ex post facto laws, which would punish individuals for actions that were legal at the time they were committed; and the restriction against imposing direct taxes unless they are apportioned among the states based on population. These limitations ensure fundamental legal protections and uphold individual rights against legislative overreach.