Criminal Law and Constitutional Limitations: Search, Seizure, Privacy
What this domain tests
The Fourth Amendment and Maine privacy law as they apply to a non-government investigator, plus the criminal statutes that turn an aggressive technique into an offense.
Core rules
- The Fourth Amendment and Maine Constitution art. I § 5 restrain government actors. A private investigator is normally not a state actor, but becomes one when acting at police direction, in a joint operation, or as an instrument of law enforcement. In that posture, evidence can be suppressed and 42 U.S.C. § 1983 liability follows.
- Without state action, civil exposure replaces suppression: trespass, intrusion upon seclusion, invasion of privacy, nuisance, and harassment claims.
- Maine is a one-party-consent jurisdiction for intercepting oral communications: a party to the conversation may record it. Do not assume the other party's state agrees; for interstate calls, apply the stricter state's law.
- Recording or viewing in places where a person has a reasonable expectation of privacy is criminal under Maine's privacy statutes. Unauthorized access to computers, email, and accounts is a computer crime.
- Tracking a vehicle or person raises privacy and stalking exposure; never attach a device without documented legal authority.
Worked example
A client asks you to record a call with a witness who is in California. Reasoning: Maine's one-party rule does not control because California requires all-party consent for confidential communications. The safe course is to announce and obtain consent on the recording, or skip recording and take detailed notes.
Traps
- Believing "private means no rules."
- Assuming one-party consent is universal.
- Overlooking that a technically lawful act can still support a stalking or harassment complaint.
Key points
- State action triggers the Fourth Amendment; police direction makes you an agent.
- Private conduct still creates tort and criminal exposure.
- Maine permits one-party recording of oral communications.
- Apply the stricter state's consent law for interstate calls.
- Unauthorized account or computer access is a crime, not just a tactic.