Forensic Inspection of a TCPA Plaintiff’s Phone or Computer
A company sued under the TCPA can ask the court to let a forensic examiner look at the plaintiff’s phone or computer, and courts sometimes say yes. The request works best when it’s tied to a specific question, like whether the plaintiff signed up on a website or texted a keyword before the messages started. Courts rarely allow a full search of the device. A narrow request with a neutral examiner and a short date range is the version that tends to get granted.
Can a defendant inspect the plaintiff’s device at all?
Yes, the federal rules allow it. Under Federal Rule of Civil Procedure 34, a party “may serve on any other party a request within the scope of Rule 26(b)” to “inspect, copy, test, or sample” designated electronically stored information in the other side’s “possession, custody, or control.” A plaintiff’s own phone fits that description.
The rule has a brake built in. The 2006 advisory committee note to Rule 34 says the addition of testing and sampling “is not meant to create a routine right of direct access to a party’s electronic information system, although such access might be justified in some circumstances.” The same note tells courts to “guard against undue intrusiveness resulting from inspecting or testing such systems.”
That sentence is the plaintiff’s best argument, and every motion to compel should be written with it in mind. The defendant has to show why its case justifies that access.
What does a court look for before ordering an inspection?
Relevance to a real dispute, and proportionality. Rule 26(b)(1) limits discovery to matter “relevant to any party’s claim or defense and proportional to the needs of the case,” and it lists factors, including “the importance of the discovery in resolving the issues” and “whether the burden or expense of the proposed discovery outweighs its likely benefit.”
In a TCPA case, consent is usually where an inspection request earns its place. If the business’s records show a web form submission, a keyword text, or an opt-in from the plaintiff’s number, and the plaintiff denies ever giving it, the device is often the only neutral source that can settle the dispute. A plaintiff who swears to never having heard of the company has put that history at issue.
The request is weak when it’s a fishing trip. Asking to image a phone to look for anything that might help invites a quick denial. Asking to check a browser history for two named websites over a two-week window is a different motion.
How did the court handle it in Thielen v. Buongiorno?
It granted the request in part and wrote the limits into the order. In Thielen v. Buongiorno USA, Inc., No. 1:06-CV-16 (W.D. Mich. Feb. 8, 2007), a TCPA case over text messages, the plaintiff alleged that he “never willingly or knowingly subscribed to any service from Blinko.” The company answered that subscribers had to start the process by sending their number through a website or a text.
The magistrate judge saw the point of the request. The order states that the information sought “would be highly pertinent to a decisive issue at trial, that is, whether plaintiff received “unsolicited” communications from Blinko.” The judge also worried about scope, writing that “inspection of an opponent’s computer may open up countless files to the searcher that are not relevant and that may be proprietary or privileged.”
The court’s answer was a protocol. The defendant could image the hard drive, but it had to “limit its examination of the image to determining whether, during the period of December 1 through December 15, 2005, plaintiff accessed Blinko’s website or a website which advertised Blinko.” The examiner had to work “in confidence and outside the presence of the parties or their attorneys,” and the plaintiff’s lawyer got to review the findings first. The order also provides that “All costs for the examiner shall be borne by the defendant.”
Thielen involved a computer, not a phone, and it’s a single unpublished order from one district. Its value is the template. A defendant that walks in with a protocol close to this one makes it easy for a judge to say yes.
The plaintiff in Thielen also missed the deadline to respond to the inspection request by more than three months. The court still refused unrestricted access, writing that it would not allow “a wholesale rummaging through plaintiff’s filing cabinet.” A late objection won’t get a defendant a full search.
| Protocol term | What it does | Why a court cares |
|---|---|---|
| Neutral examiner | Keeps the defendant’s lawyers out of the raw data | Reduces the privacy and privilege concern |
| Date range | Limits the search to the weeks around the alleged opt-in | Ties the search to the disputed fact |
| Named sources or search terms | Limits the search to specific websites, short codes, or apps | Answers the advisory note’s concern about direct access |
| Plaintiff’s first review | Lets the plaintiff’s counsel object before findings are shared | Gives the court a way to protect privileged material |
| Defendant pays | Moves the cost to the side asking | Helps the proportionality analysis |
| Protective order | Limits who sees the results and how they’re used | Fits within Rule 26(c) |
What should the request ask for?
Something the examiner can answer with a yes or no. Good targets in TCPA cases include whether the number sent the keyword to the short code, whether the device visited the lead form’s domain on the date in the business’s records, whether the plaintiff deleted messages from the sender, and who used the phone. That last one matters in reassigned-number and family-plan cases.
Pair the request with the business’s own evidence. A declaration from the texting platform showing the opt-in timestamp and the IP address of the form submission gives the court a reason to think the inspection will find something. Without it, the motion looks like a hunt.
Timing helps too. A preservation letter at the start of the case, asking the plaintiff to keep the phone and not to reset it, sets up the request and any later spoliation argument. The earlier post on TCPA spoliation of dialer and text data covers the duty to preserve.
Can the plaintiff refuse?
The plaintiff can object and ask for a protective order. Rule 26(c) allows a court, “for good cause,” to protect a party “from annoyance, embarrassment, oppression, or undue burden or expense,” including by “designating the persons who may be present while the discovery is conducted.” Most plaintiffs will argue privacy first, and a phone holds more private material than any computer did in 2007.
A plaintiff who refuses an order, or who gets rid of the device, takes a much bigger risk. The earlier post on suing the TCPA plaintiff back describes a case where a court dismissed the plaintiff’s suit as a sanction after he discarded a computer shortly before a court-ordered inspection.
Preparing a request to inspect the plaintiff’s device
- Lock down the business’s own proof first: the platform logs, the web form submission with its timestamp and IP address, and the consent record tied to the plaintiff’s number.
- Pull the opt-out history for the number, since a deleted STOP reply can cut either way.
- Check the Registry scrub record and its version date, so the inspection request doesn’t overlook a Do Not Call claim pleaded alongside the consent claim.
- Draft the inspection protocol with a neutral examiner, a date range, named sources, a review step for the plaintiff’s counsel, and a cost term.
- Have a lawyer review the plan before sending the request, so the motion and the deposition questions line up.
Defense lawyers handling TCPA discovery often send the inspection request after the plaintiff’s deposition, when the plaintiff has denied the opt-in under oath. The earlier posts on questions for the TCPA plaintiff’s deposition and on defending against serial TCPA plaintiffs cover how to build that record.
Questions about inspecting a TCPA plaintiff’s device
Does the defendant get a full copy of the phone?
Usually not. Courts that allow an inspection tend to let a neutral examiner make the image and search it under limits, then report only what the order allows. The defendant gets findings, not the phone’s contents. Asking for a full copy invites the objection that the Rule 34 advisory note anticipates, that the rule “is not meant to create a routine right of direct access to a party’s electronic information system.”
Who pays for the forensic examiner?
The side that asks, in most protocols. Thielen put the full cost on the defendant. Offering to pay up front also helps on proportionality, since the plaintiff’s main burden becomes the time spent handing over the device.
Is this worth doing in an individual TCPA case?
Sometimes. The exam costs money, and in a single-plaintiff case the cost can approach the exposure. It’s worth more when the plaintiff has filed many TCPA cases, when the business has strong records of an opt-in the plaintiff denies, or when the case is a putative class action and the named plaintiff’s consent decides whether the class goes forward.
Can the plaintiff’s lawyer see the results first?
In many protocols, yes. Thielen required the examiner to send proposed findings to the plaintiff’s counsel, who could seek a protective order before the defendant saw them. Building that step into the proposal answers the privilege objection before it’s raised.
When the plaintiff’s own device is the key evidence
If your company is defending a TCPA claim from a plaintiff who denies an opt-in your records show, the plaintiff’s device may hold the answer, and the protocol you propose usually decides whether a court allows the search. Rosenberger + Kawabata represents businesses defending TCPA lawsuits and class actions through its business litigation practice, including claims involving disputed web form and keyword opt-ins. Contact Rosenberger + Kawabata online for a confidential consultation, or call (310) 894-6921.
Sources
The discovery rules are Federal Rule of Civil Procedure 26 and Federal Rule of Civil Procedure 34, with the 2006 advisory committee notes. The statute is the Telephone Consumer Protection Act, 47 U.S.C. § 227.
The decision discussed is Thielen v. Buongiorno USA, Inc., No. 1:06-CV-16 (W.D. Mich. Feb. 8, 2007) (order granting in part motion to compel inspection).
This post is general information about the Telephone Consumer Protection Act and related laws as of July 23, 2026. It is not legal advice, and reading it does not create an attorney-client relationship. Courts and the FCC change the rules in this area often, and the outcome of any claim depends on its facts. Past results do not guarantee future outcomes.