A writ issued by a High Court to order the production of a person in illegal confinement is:

🧠 Explanation:

Habeas Corpus is a legal writ protecting individuals from unlawful detention. Courts can demand the person be brought before them to examine the legality of confinement. “Writ” is a noun, while “illegal confinement” denotes unlawful imprisonment. Alternatives include “court directive” or “legal summons.” Hence, the correct answer is Habeas Corpus.