Federal Reference & Disclaimer

Federal statutes that govern private investigator activity across every U.S. jurisdiction, plus the universal legal disclaimer that accompanies this reference.

Legal Disclaimer & Limitations

This document is provided for general informational purposes only. It does not constitute legal advice, and it is not a substitute for consultation with a licensed attorney in the relevant jurisdiction. Laws change frequently — both at the statutory and case-law level — and applicability turns on facts specific to each engagement.

Not legal adviceAlways verify the current state of the law with a licensed attorney before taking any investigative action that could carry criminal, civil, or licensing-board exposure. The state summaries above are necessarily compressed and may not capture every relevant nuance.

Federal Statutes That Apply Nationwide

The following federal statutes apply uniformly across all U.S. jurisdictions and constitute the federal floor for investigative conduct. State laws may layer additional restrictions on top of these but cannot diminish them.

Best Practices for All Jurisdictions

  1. Default to the stricter rule — when an investigation crosses state lines, the strictest state's rules typically apply. A PI in a one-party state who records a call with a subject in an all-party state may face liability under the latter state's law.
  2. Document permissible purpose — when accessing DPPA-, FCRA-, or GLBA-protected data, contemporaneously record the legitimate investigative purpose and retain that documentation with the case file.
  3. Maintain chain of custody — for any digital evidence, hash the file at collection time, log every transfer, and store originals in tamper-evident systems. Most courts increasingly require chain-of-custody documentation for the admissibility of digital evidence.
  4. Never pretext financial, medical, or telecom records — these are federal felonies regardless of state law.
  5. Coordinate with counsel when in doubt — particularly for novel surveillance techniques (drones, IMSI catchers, biometric collection) and any time the investigation could become evidence in litigation.
  6. Respect curtilage — even in jurisdictions where public surveillance is broadly permitted, the area immediately surrounding a home is constitutionally protected against intrusive observation.
  7. Avoid stalking-statute exposure — most state stalking statutes turn on whether a reasonable person in the subject's position would feel fearful or harassed. Persistent, conspicuous surveillance can cross the line even when the underlying investigation is legitimate.