Murphy v. Waterfront Commission of New York Harbor
Headline: Court bars federal use of testimony compelled under state immunity, protecting witnesses from being forced to incriminate themselves across state–federal lines and affecting joint criminal probes.
Holding: The constitutional privilege against self-incrimination protects witnesses from compelled testimony in one jurisdiction that could be used to prosecute them in another, and federal officials may not use state-compelled testimony or its fruits.
- Bars federal use of testimony compelled by a State under state immunity.
- Requires federal prosecutors to prove cases without using state-compelled testimony or its fruits.
- Allows States to compel testimony under state immunity while protecting witnesses from dual prosecutions.
Summary
Background
Petitioners were witnesses called to a hearing by the Waterfront Commission about a work stoppage at the Hoboken, New Jersey, piers. They refused some questions fearing criminal exposure. New Jersey and New York granted them immunity under state law, but petitioners still feared federal prosecution and refused to answer, and were held in contempt.
Reasoning
The Court asked whether one government can force a person to testify when that testimony might be used to prosecute them in another government’s courts. Reviewing English and American cases, the Court rejected earlier lines of decisions (including Murdock and Feldman) and concluded the privilege against self-incrimination must operate across state and federal lines. It held that federal officials may not use testimony compelled by a State (or its “fruits”) in a federal criminal prosecution.
Real world impact
The decision preserves the witness privilege across jurisdictions while allowing States to compel testimony when they grant state immunity, so long as federal authorities make no use of that compelled testimony or evidence derived from it. The Court vacated the contempt judgments and remanded so petitioners can decide whether to answer now that federal use is barred.
Dissents or concurrances
Several Justices concurred or wrote separately: some agreed on narrow grounds (supervisory power over federal prosecutions), while others warned this approach raises federalism concerns and could affect the scope of state immunity laws.
Opinions in this case:
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