3.3 Trespass, Unlawful Photography & Privacy Boundaries

Key Takeaways

  • T.C.A. § 39-14-405 prohibits entering or remaining on property without the owner’s consent and treats compliant signs or purple-paint notice as barriers to the statutory defenses.

  • Current purple-paint notice requires at least one explanatory sign at a major point of ingress plus specified vertical marks; the former draft’s paint-only and spacing formula was incomplete.

  • A PI license and client request do not authorize entry into yards, apartment common areas with compliant postings, buildings, or low private airspace.

  • Tennessee’s current unlawful-photography statute protects against specified intimate or privacy-invasive images and was materially revised in 2025.

  • Lawful surveillance planning uses a lawful vantage, ordinary observation, limited collection, and prompt withdrawal when consent or property access ends.

Last updated: October 2026

Trespass, Unlawful Photography & Privacy Boundaries

A private investigator’s license creates no right of entry. The client cannot grant access to property the client does not control, and evidence value does not excuse an unlawful vantage.

Criminal trespass

Under T.C.A. § 39-14-405, a person commits criminal trespass by entering or remaining on property, or a portion of it, without the owner’s consent. Consent can sometimes be inferred for commercial property open to the public or other property the owner has communicated is open to the public. Inferred public access remains limited by place, time, purpose, barriers, and a request to leave.

The statute provides a defense when the person reasonably believed consent existed, did not substantially interfere with the owner’s use, and immediately left when requested. That defense is unavailable when the owner has provided specified notice.

Signs and purple paint

Notice can be supplied by visible signs at major points of ingress that are reasonably likely to be seen. Purple paint can also be used, but the current statute requires:

  • at least one sign at a major point of ingress explaining that purple paint means no trespassing;
  • vertical purple lines at least eight inches long and one inch wide;
  • the bottom of each mark between three and five feet above ground; and
  • placement where the marks are reasonably likely to come to an entrant’s attention.

The former draft incorrectly presented purple paint by itself and added forest/nonforest spacing numbers not stated in current § 39-14-405. For this exam, use the current section.

The statute also addresses posted housing or apartment complexes. Posted grounds and common areas do not carry an inference of consent or the ordinary defense unless the entrant has actual consent, lawful occupational access, a contractual right, or an invitation from someone with the contractual right to invite.

“Enter” includes the entire body and can include causing an unmanned aircraft to enter the owner’s low airspace outside federally regulated navigable airspace. Drone surveillance therefore requires both aviation and property-law analysis.

Public vantage is necessary, not always sufficient

Observation from a public street, sidewalk, or other lawful location avoids the basic entry problem. It does not automatically make every collection method lawful. Equipment, duration, harassment, audio capture, intimate imagery, and intrusion into secluded activity can create separate issues.

Fourth Amendment search doctrine principally limits government action. A private investigator should not treat a constitutional case about police warrants as direct permission to conduct intrusive private surveillance. Private actors remain subject to criminal statutes, civil privacy law, contract, and licensing duties.

Current unlawful-photography law

T.C.A. § 39-13-605 was materially revised in 2025. It prohibits defined forms of nonconsensual photography involving reasonable expectations of privacy, intimate areas, sexual-arousal purposes, harassment-related purposes, or dissemination. The exact offense and grade depend on the statutory pathway and facts.

For investigation planning, the durable rules are:

  • never aim or position equipment to capture intimate areas or activity not visible to ordinary observation;
  • do not use a ladder, gap, elevated camera, drone, hidden device, or extreme angle to defeat a privacy barrier;
  • stop recording when the lawful assignment would collect unduly private or unrelated intimate activity;
  • segregate and report accidental sensitive capture without disseminating it; and
  • obtain legal direction before using questionable imagery.

Tennessee also criminalizes observation without consent under § 39-13-607 when its specific privacy, offensiveness, and sexual-purpose elements are met. The fact that a person was lawfully on the premises is not a defense to that offense. A professional investigator should apply a broader risk rule: do not conduct voyeuristic observation, even when a technical element might be disputed.

Civil privacy and client scope

Tennessee recognizes civil privacy interests, but labels such as intrusion, publication, or appropriation have different elements. The exam-quality response does not declare that every long-lens photograph is automatically a tort. It identifies the lawful vantage, the subject’s seclusion, the means used, the relevance to the assignment, and the degree of intrusion.

Limit collection to the client’s legitimate objective. A workers’ compensation assignment may justify observing public physical activity; it does not justify filming through a bathroom or bedroom window. A custody matter may justify documenting a public exchange; it does not authorize entry into a gated yard.

Field boundaries

Before selecting a position:

  1. confirm whether the site is public, client-controlled, or third-party property;
  2. inspect signs, paint, gates, access controls, and prior instructions;
  3. obtain written permission from the actual owner or authorized controller when using private property;
  4. choose a position that does not obstruct traffic or create a safety hazard;
  5. frame only what ordinary lawful observation reveals;
  6. avoid recording protected audio unless consent law is satisfied; and
  7. leave immediately when lawful access is withdrawn.

Example

An investigator stands on a public sidewalk and can see a subject carry groceries across an open driveway. Documenting that visible activity is different from placing a ladder on the sidewalk to see over a solid privacy fence into a secluded backyard. The ladder does not trespass on the yard, but it demonstrates a deliberate attempt to defeat seclusion and can implicate privacy and unlawful-photography concerns.

Exam method

Separate where the investigator is from what the investigator captures. A lawful location does not cure unlawful recording; a useful image does not cure trespass. Reject any answer claiming that a PI license, client retainer, or evidentiary purpose overrides an owner’s consent or a subject’s protected privacy.

Test Your Knowledge

What must accompany purple paint under current § 39-14-405 for the specified no-trespass notice method?

A

A police report filed before every entry

B

A fence at least six feet high

C

A separate mark every 36 feet in every setting

D

At least one explanatory sign at a major point of ingress

Test Your Knowledge

Which surveillance plan presents the clearest privacy problem even if the investigator remains on a public sidewalk?

A

Using a ladder and camera to defeat a solid privacy fence and view secluded activity

B

Photographing a storefront sign

C

Writing down a publicly visible license plate

D

Observing traffic entering a public parking lot

Test Your Knowledge

What authority does a Tennessee PI license give to enter a subject’s private yard?

A

Entry whenever evidence may be found

B

None; lawful consent or another independent legal basis is still required

C

Entry during daylight only

D

Entry if the client orally requests it

Sections you finish are checked off in the contents.