Punishing someone for an action that did not used to be a crime is an example of

an ex post facto law.
habeas corpus.
a “necessary and proper” law.
a bill of attainder.

Question

Punishing someone for an action that did not used to be a crime is an example of 

an ex post facto law.
habeas corpus.
a “necessary and proper” law.
a bill of attainder.

GPT-5 mini · Answer

An ex post facto law.

Explanation: Ex post facto laws retroactively criminalize conduct or increase punishment after the act was committed. Habeas corpus is a challenge to unlawful detention; "necessary and proper" refers to congressional powers; a bill of attainder punishes specific persons or groups without trial.

Punishing someone for an action that did not used to be a crime is an example of

an ex post facto law.
habeas corpus.
a “necessary and proper” law.
a bill of attainder.

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Punishing someone for an action that did not used to be a crime is an example of an ex post facto law. habeas corpus. a “necessary and proper” law. a bill of attainder.

All Answers 1