One of the most common questions we hear from clients — and from the family law attorneys who refer cases to us — is whether surveillance footage or photographs gathered by a private investigator can actually be used in a Tennessee divorce proceeding. The short answer is yes, but only when it's collected correctly.
Tennessee courts will generally admit evidence of marital misconduct, including documented proof of infidelity or cohabitation, provided that the evidence was obtained legally. That means no trespassing, no wiretapping, no accessing private accounts without consent, and no surveillance conducted in locations where a person has a reasonable expectation of privacy. A properly licensed Tennessee private investigator knows where those lines are — and how to work right up to them.
What makes evidence court-ready isn't just legality, though. Courts and opposing counsel will scrutinize how the evidence was documented, who collected it, and whether the chain of custody is intact. At Birds Eye Investigations, every surveillance engagement produces timestamped video, GPS-logged location data, and a written report that can withstand cross-examination. Our investigators are prepared to testify if required.
Evidence that tends to hold up well includes video footage of a spouse entering or exiting a shared residence with a third party, documentation of overnight stays, financial activity surveillance in asset concealment cases, and photographic evidence of cohabitation relevant to alimony modification proceedings.
Evidence that tends to be challenged includes screenshots of text messages obtained from a shared device, social media content without proper documentation of authenticity, and anything gathered through methods that could be characterized as harassment or stalking.
If you are a family law attorney building a case and you want to know specifically what evidence is likely to be useful in your situation, contact us before the investigation begins. A brief consultation saves time, money, and the risk of gathering evidence that can't be used.
Birds Eye Investigations is a licensed, veteran-owned private investigation agency serving Nashville and Middle Tennessee. Call us at 615-200-7064 for a confidential attorney consultation.
Frequently Asked Questions
Will the PI have to testify in my Tennessee divorce?
Possibly. If the other side challenges the evidence or the case goes to trial, your attorney may call the PI to explain what was observed and how it was recorded. Many cases settle before that point. Birds Eye prepares every report assuming testimony may be needed, so the notes, timestamps and footage line up if a PI takes the stand.
Can the other side challenge photos and video from a PI agency?
Yes. Opposing counsel may question how the footage was obtained, whether it was edited, whether the time and place are accurate, and whether it shows what you claim. Careful documentation answers those challenges. Birds Eye keeps original files, logs times and locations, and ties each clip to the written report so the chain of custody is clear.
Is evidence I gathered myself admissible in a Tennessee divorce?
It depends on how you got it. Recording a conversation you are part of is generally allowed under Tennessee's one-party consent rule, but secretly recording others, tracking a vehicle you do not own, or logging into a spouse's accounts can be illegal and may backfire. Ask your attorney before you use or keep collecting anything.
Can surveillance evidence be used in a Tennessee custody case?
It can be relevant. In custody disputes, courts focus on the child's best interests, so lawfully gathered evidence about a parent's conduct, supervision or compliance with a parenting plan may matter. The judge decides what weight it receives. Birds Eye works with family law attorneys to focus surveillance on facts that bear on parenting, not just on the relationship.

