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R41903

Federal Material Witness Statute: A Legal Overview of 18 U.S.C. § 3144

Published Jun 26, 2024Updated Jun 21, 2025

The Congressional Research Service is a nonpartisan policy and legal analysis arm of the Library of Congress. CRS reports are written for members of Congress and their staff, not the public — but they’re made available openly through Congress.gov.

Federal Material Witness Statute: A Legal Overview of 18 U.S.C. § 3144 — Informed