Subpoenas
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
The Commission may issue to any person or firm a subpoena requiring the production of documentary evidence (subpoena duces tecum) and/or attendance and testimony of witnesses (subpoena ad testificandum) relating to any matter under investigation. Procedures regarding compliance with subpoenas and motions to limit or quash subpoenas are provided for in § 1118.9.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.