“Trap and trace” sounds like a wire hidden in a motel wall, but Wyoming law treats it as a narrower kind of communication tracing. It is usually not about hearing a phone call or reading a message. It is about the outside trail of contact. A pen register watches what goes out from a phone line. A trap-and-trace device watches what comes in. The words stay inside the room, but the tracks outside the door can still say plenty.
Wyoming has its own pen register and trap-and-trace statutes in W.S. 7-3-801 through 7-3-806. These sections define the tools, set the court-order rule, limit the state order path to investigations of Wyoming Controlled Substances Act violations, describe who may apply, list what the order must contain, set a 60-day time limit, require sealing and nondisclosure, order provider help when needed, protect good-faith helpers, and require yearly reporting by the attorney general.
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What a Pen Register Does
Wyoming defines a pen register as a device that identifies on-hook and off-hook conditions and records or decodes electronic or other impulses that identify numbers dialed or otherwise sent on the telephone line where the device is attached.
In plain English, a pen register asks: who did this line reach out to? It looks at outgoing number data and call-processing signals. It should not record the call itself. It should not capture the spoken words or read a message body.
Think of it as someone watching outgoing envelopes at a counter. They can see the address and the time the envelope leaves. They cannot open the envelope and read the letter. Still, a stack of envelopes can show routines, contacts, and repeated patterns.
What a Trap-and-Trace Device Does
A trap-and-trace device works in the other direction. Wyoming defines it as a device that captures incoming electronic or other impulses that identify the originating number of an instrument or device from which a wire or electronic communication was sent.
In simple English, it asks: who reached in? It can help identify the source of incoming communications. It traces the path toward the target line, not the voice or message inside the contact.
Picture a ranch road after fresh snow. A pen register reads tire tracks leaving the gate. A trap-and-trace device reads tire tracks heading toward it. Neither one walks into the house and listens at the table.
Wyoming’s Main Statutes
The main Wyoming rules sit in Article 8 of Title 7, Chapter 3. Section 7-3-801 gives the definitions. Section 7-3-802 gives the general ban, provider exceptions, call-processing limit, and penalty. Section 7-3-803 covers applications. Section 7-3-804 covers court orders. Section 7-3-805 covers assistance from providers, landlords, custodians, and other people. Section 7-3-806 covers annual reports.
The article is short, but it has sharp edges. It does not create a free-standing tracing power for every kind of criminal case. The state application path is tied to investigations of violations of the Wyoming Controlled Substances Act of 1971.
That narrow fit matters. Some states let pen-register orders reach any ongoing criminal investigation. Wyoming’s state article, as written, points to drug-law investigations under the state controlled substances law.
The General Ban in W.S. 7-3-802
Wyoming starts with a direct rule. Except as the law allows, no person may install or use a pen register or trap-and-trace device without first getting a court order under W.S. 7-3-804.
The words “no person” matter. The rule is not aimed only at police. A private person should not secretly trace another person’s calls or communication traffic because of jealousy, a breakup, a tenant dispute, a work fight, or business suspicion. Paying the phone bill does not turn a person into a court.
A knowing violation can bring a fine of up to $1,000, imprisonment for up to one year, or both. A secret trace can become a legal pit for the person who set it.
Provider Exceptions
Wyoming gives providers of electronic or wire communication service limited exceptions. A provider may use a pen register or trap-and-trace device for operation, maintenance, and testing of service. A provider may also use one to protect its rights or property, or to protect users from abuse of service or unlawful use of service.
A provider may also record that a wire or electronic communication was started or completed when that helps protect the provider, another provider helping complete the communication, or a user from fraudulent, unlawful, or abusive service use.
User consent is another listed exception. These provider exceptions are built for service health, fraud control, abuse response, and user protection. They are not a private snooping pass.
Ordinary Billing Tools Are Different
Wyoming’s pen-register definition excludes devices used by a provider or customer for billing, recording as part of billing, cost accounting, or similar work in the ordinary course of business.
That means normal billing systems and service records are not treated the same as a court-ordered pen register. Phone companies and communication providers need records to run service, bill customers, prevent abuse, and fix network problems.
The difference is purpose and use. A normal service record is one thing. A hidden tracing setup used to follow another person’s communications is another.
The Call-Processing Limit
Wyoming adds a call-processing limit for state or local agencies authorized to install and use a pen register. The agency must use reasonably available technology that restricts recording or decoding to dialing and signaling information used in call processing.
This keeps the tool in the outer-data lane. The setup should collect the signals needed to show call handling, not drift into recording words or message substance.
The line is simple: a pen register should read the label on the package. It should not open the box.
Who May Apply for a Wyoming Order?
Under W.S. 7-3-803, an attorney for the state may apply for an order or extension. Wyoming defines attorney for the state as the attorney general or the attorney general’s designee, or a district attorney.
The application must be in writing and under oath or an equivalent affirmation. It goes to a court of competent jurisdiction, which Wyoming defines as a district court.
This is not a casual agency request. A peace officer alone does not simply call a provider and ask for live tracing under the state article. The state attorney path and district court gate are built into the statute.
The Controlled Substances Limit
Wyoming’s state application rule is limited to investigations of violations of the Wyoming Controlled Substances Act of 1971. The application must certify that the information likely to be obtained is relevant to an ongoing investigation of that kind.
This makes Wyoming different from several states with wider pen-register statutes. A state order under this article is not written as a general tool for every theft, fraud, harassment, or assault case. It is tied to the drug-law investigation named in the statute.
Federal law may still matter in other settings, but the Wyoming state article itself has this narrower lane.
What the Application Must Include
The application must identify the attorney for the state making the request. It must also identify the law enforcement agency conducting the investigation.
The application must include a certification that the information likely to be obtained is relevant to an ongoing investigation of a violation of the Wyoming Controlled Substances Act of 1971 being conducted by that agency.
That relevance certification is the state gate for this device. It is not a probable-cause affidavit in the way a full search warrant often is. The tool is aimed at outside communication data, not the substance of the call or message.
The Ex Parte Court Order
When the application is made under W.S. 7-3-803, the district court enters an ex parte order if the court finds that the attorney for the state has made the required certification. “Ex parte” means the person tied to the line is not present during the request.
This is common in investigative orders. Advance notice could warn the subject of the investigation. The court still acts as the gate, and the order still has defined limits.
The order may authorize installation and use of a pen register or trap-and-trace device within Wyoming.
What the Order Must Say
The order must identify, if known, the person to whom the telephone line is leased or in whose name it is listed. It must also identify, if known, the person who is the subject of the criminal investigation.
The order must state the number and, if known, the physical location of the telephone line where the pen register or trap-and-trace device will be attached. For a trap-and-trace device, the order must also state geographic limits.
The order must include a statement of the offense to which the information likely to be obtained relates. Upon request by the applicant, the order must also direct the furnishing of information, facilities, and technical help needed to install the device.
How Long the Order Can Last
A Wyoming order may authorize installation and use for no more than 60 days. If more time is needed, the attorney for the state may apply for an extension.
An extension must meet the same application rule and the same judicial finding required for the first order. Each extension may also last no more than 60 days.
The dates matter. A lawyer may compare the application, order, start date, end date, extension papers, provider returns, and agency notes. If collection went beyond the approved period, the timeline can become a major issue.
Sealing and Nondisclosure
A Wyoming order must direct that the order be sealed until the court says otherwise. It must also direct the person who owns or leases the line, or any person ordered to help, not to disclose the existence of the device or the investigation to the listed subscriber or anyone else unless the court allows it.
This is why a person may not learn about the order while it is active. A provider, landlord, custodian, or other helper may be under a court command to stay silent.
A business that receives such an order should route it to counsel or a trained legal-response person. It should not be passed through casual office messages or discussed with the account holder.
Assistance With a Pen Register
W.S. 7-3-805 requires help when the court order directs it. A provider of wire or electronic communication service, landlord, custodian, or other person must furnish the information, facilities, and technical help needed to install the pen register.
The help must be given right away and in a way that is unobtrusive, with minimal service interference for the person whose line is involved.
The provider is not acting as a private investigator. It is obeying a court order. The order sets the frame, not curiosity or convenience.
Assistance With a Trap-and-Trace Device
For a trap-and-trace device, a provider, landlord, custodian, or other ordered person must install the device on the proper line and furnish added information, facilities, and technical help, including installation and operation.
Unless the court orders another method, results from the trap-and-trace device are furnished to the officer named in the court order at reasonable intervals during regular business hours for the duration of the order.
This gives the order a steady rhythm. The provider supports or installs the device. The named officer receives the approved results inside the approved time period.
Payment and Protection for Helpers
A provider, landlord, custodian, or other person who provides facilities or technical help under W.S. 7-3-805 must be reasonably paid for reasonable expenses.
Wyoming also blocks lawsuits against providers and other listed helpers for providing information, facilities, or assistance according to the terms of a court order under the act.
Good-faith reliance on a court order, legislative authorization, or statutory authorization is a complete defense against civil or criminal action under the act or any other law. That protection works best when the response is narrow. Read the order. Follow the order. Keep a clear record.
Annual Reporting
Wyoming has a yearly reporting rule. The attorney general must report to the joint judiciary interim committee on the number of pen-register orders and trap-and-trace orders applied for under the act.
The report must be provided no later than July 1 each year. This gives lawmakers a yearly count of how often the state order path is being used.
The report is not the same as opening sealed case files. It is more like a tally sheet outside a locked evidence room.
How This Differs From Wiretapping
Wiretapping deals with communication substance. It can mean hearing calls, recording spoken words, reading message bodies, or capturing what people actually said or wrote.
A pen register or trap-and-trace device is narrower. It should deal with outside signal data: numbers, incoming origins, outgoing contacts, timing, and call-processing information. It should not read or record the message.
The split is like reading a package label instead of opening the box. Trap-and-trace law studies the label. Wiretap law deals with the contents inside.
Federal Law Still Matters
Federal law also regulates pen registers and trap-and-trace devices through 18 U.S.C. §§ 3121 through 3127. Federal law sets a broad ban, provider exceptions, application rules, order rules, provider assistance, time limits, reports, definitions, and a narrow emergency path.
Wyoming’s state article is narrower than the federal law in one clear way: the state application path is tied to Wyoming Controlled Substances Act investigations. Federal officers, federal court orders, interstate providers, and cases involving federal law may follow the federal chapter.
The same core idea runs through both systems: do not install or use a pen register or trap-and-trace device unless a lawful order or clear exception fits.
Federal Emergency Use
Federal law has a narrow emergency path. In urgent settings, a specially authorized official may approve installation and use before a court order is signed. The government must then seek court approval within 48 hours.
Emergency categories include immediate danger of death or serious bodily injury, certain organized-crime activity, national security threats, and some ongoing attacks on protected computers. The emergency must require action before an order can be obtained with due care.
Wyoming’s state Article 8 does not read like a broad state emergency-use section. If an emergency pen-register claim appears in a Wyoming case, the papers should be checked under the exact legal path the agency used.
Location Tracking Is a Different Question
Trap-and-trace data should not be confused with location tracking. A trap-and-trace device points to the origin of incoming communications. Location tracking points to where a phone, vehicle, person, or object is or has been.
A phone can create both contact data and movement data. The law may treat those data types differently. Cell-site data, GPS pings, app location, vehicle trackers, and device-location records can call for a different warrant or court-order path.
A contact trail is not the same as a travel trail. Both can matter, but they are not the same map.
Private People Should Not Try This
A private person should not install hidden software, hardware, router settings, call-forwarding rules, spyware, account filters, or tracing setups to follow someone else’s communications. Suspicion is not enough. A breakup is not enough. A ranch dispute is not enough. Paying the bill may not be enough.
Do not log into another person’s account to see who contacted them. Do not hire someone to trace calls or messages outside lawful process. Do not place monitoring equipment on a phone line, router, laptop, office system, shared account, or phone for personal reasons.
Wyoming’s pen-register statute, federal law, computer-crime rules, stalking or harassment laws, workplace rules, family-court orders, and civil claims can all enter the room. A hidden trace can become a legal pit.
Employers and Business Systems
Employers often keep phone logs, email routing logs, network logs, access records, security alerts, payment records, and fraud records. Some logging may be ordinary business activity when tied to service upkeep, security, billing, fraud control, or abuse response.
But secret tracing of private communications can create risk. Company ownership of a phone, laptop, router, email account, or work system does not answer every question. Written policy, notice, consent, business need, data type, and access limits all matter.
A Wyoming employer should get legal review before adding systems that trace worker communication patterns beyond ordinary business logging. The safer route is written policy, narrow collection, limited access, and clean records.
Website Tracking and New Data Questions
Pen-register and trap-and-trace ideas began in the phone world, but new disputes can involve websites, apps, analytics scripts, chat boxes, ad pixels, device IDs, IP logs, and account tracking. These systems can send user activity to outside vendors with little visible sign on the screen.
Not every web-tracking dispute is a Wyoming pen-register case. Some turn on wiretap law, consumer law, contract terms, health data, consent banners, account notices, or how data moves to a vendor.
Wyoming businesses should review tracking systems before launch. A small script can act like a keyhole if it passes too much user activity to the wrong party.
What Wyoming Residents Should Know
For Wyoming residents, the practical point is that the state pen-register and trap-and-trace article is a controlled-substances investigation tool. An attorney for the state may apply to a district court in writing under oath, and the application must certify relevance to an ongoing Wyoming Controlled Substances Act investigation.
The person tied to the line may not receive notice while the order is active because sealing and nondisclosure rules apply. The data may later appear in warrant papers, charging records, discovery, or motion practice. It may show outgoing numbers, incoming origins, timing, and contact patterns.
If you learn that one of these orders was used in a case involving you, a Wyoming criminal defense lawyer can review the application, certification, order, dates, extension papers, provider returns, and whether the data stayed inside the court-approved boundary.
What Providers and Businesses Should Do With an Order
A provider, landlord, custodian, platform, or business that receives a Wyoming order should treat it as legal process. Preserve the document. Limit internal access. Send it to counsel or a trained legal-response person.
Read the order closely. Check the court, date, covered telephone line, physical location if listed, data type, time period, named agency, assistance language, sealing language, and nondisclosure command. Provide what the order requires, not extra data from extra accounts or extra dates.
Keep a clear record of the response. Note when the paper arrived, who reviewed it, what help was given, what data was furnished, and when. A careful response is like tying down a gate before the wind rolls across the plains. It keeps the matter from swinging loose later.
Common Misunderstandings
One common misunderstanding is that trap and trace means listening to calls. It does not. It points to incoming identifying data, not the words spoken.
Another misunderstanding is that Wyoming’s state article applies to every criminal investigation. It does not read that way. The state application path is tied to Wyoming Controlled Substances Act investigations.
A third misunderstanding is that ordinary provider billing systems are pen registers. Wyoming excludes ordinary billing, billing-record, cost-accounting, and similar business tools from the pen-register definition.
A final misunderstanding is that a provider may freely warn the customer. A court order can require sealing and nondisclosure until the court says otherwise.
Bottom Line on Wyoming Trap and Trace Law
Wyoming trap and trace law sits in W.S. 7-3-801 through 7-3-806. A pen register identifies on-hook and off-hook conditions and records or decodes impulses that identify numbers dialed or sent on a telephone line. A trap-and-trace device captures incoming impulses that identify the originating number of the device or instrument that sent the wire or electronic communication.
Wyoming generally bars installation or use of a pen register or trap-and-trace device without first getting a court order under W.S. 7-3-804, unless a provider exception or consent path fits. A knowing violation can bring a fine of up to $1,000, imprisonment for up to one year, or both.
An attorney for the state may apply in writing under oath to a district court, but only for investigations of violations of the Wyoming Controlled Substances Act of 1971. The application must identify the attorney and law enforcement agency and certify that the information likely to be obtained is relevant to an ongoing controlled-substances investigation by that agency.
The order may last no more than 60 days, with 60-day extensions available through the same process. The order must identify known line-listing information, known investigation subjects, the line number and physical location if known, trap-and-trace geographic limits, and the related offense. The order must be sealed and must include nondisclosure language. Providers and other ordered helpers must assist when directed, must be reasonably paid, and receive protection for compliant help. The law does not open the letter, but it can study the envelope. In Wyoming, that envelope is tied to a controlled-substances investigation gate.