Question

a legal order for an investigation into whether a person who is arrested has been imprisoned legally defines
○ habeas corpus.
○ trial by jury.
○ popular sovereignty.
○ checks and balances.

Explanation:

Habeas corpus is a legal writ that requires authorities to bring an imprisoned person before a court to verify the legality of their detention. The other options do not match this definition: trial by jury refers to a trial with a jury of peers, popular sovereignty is the principle that power comes from the people, and checks and balances is the system of limiting government branch power.

Answer:

habeas corpus.