Tracking your child when they are with the other parent is legally risky in most situations, even when your motive is safety. A GPS tag, a family locator app, or a “Find My” setting on your child’s phone also reveals where the other parent drives, eats, sleeps, and spends time, and courts and prosecutors tend to treat that as surveillance of the adult, not just monitoring of the child. Whether you can do it legally depends on three things: what your custody order says, what your state’s tracking statutes allow, and whether the other parent has agreed or a judge has authorized it.
Start With Your Custody Order
Read the order before you buy a device or install anything. Some orders address electronic monitoring directly, either allowing it under specific conditions or forbidding it. Others use broader language about respecting the other parent’s time and autonomy that a judge can read as barring covert tracking. Silence is not permission. Courts expect each parent to exercise their custodial time without interference, and hidden monitoring almost always counts as interference.
Joint legal custody complicates things further. When both parents share decision-making authority over the child’s welfare, unilaterally placing a tracker on the child can be treated as overstepping that authority. Sole physical custody does not fix the problem either. The other parent’s visitation is protected by the order, and monitoring during that time can look like an attempt to supervise their parenting.
Tracking the Child Also Tracks the Other Parent
This is where good intentions run into hard facts. You may genuinely want to know your eight-year-old made it to soccer practice, but the same feed shows that your co-parent stopped at a bar on the way, drove to a new partner’s house, or crossed a state line. Judges see through the “I’m only watching my child” framing. A GPS device on a backpack effectively monitors the other adult’s movements, routines, and associations.
The practical consequences follow. Location data collected this way is discoverable if the case ends up in court, and it frequently backfires. A parent who appears to be obsessively monitoring the other household reads as controlling rather than concerned, and that impression can shape rulings on custody, visitation, and decision-making authority.
State Tracking Laws Are Where the Real Risk Lives
A growing number of states criminalize placing an electronic tracking device on a person, vehicle, or personal property without consent. The scope varies. Some statutes reach only vehicles. Others cover any device used to determine someone’s location or movements without their knowledge. Penalties range from misdemeanors to felonies.
More than a dozen states have statutes directly addressing private use of location tracking devices, and several others reach it through anti-stalking or harassment laws.1NCSL. Private Use of Location Tracking Devices: State Statutes The direction is toward stricter regulation, particularly as cheap Bluetooth trackers have made covert monitoring easier. Some states have recently upgraded penalties for using small trackers to follow someone, moving those offenses from misdemeanor to felony territory.
Because the rules differ so much, what is legal in your state may be a crime in the state next door. A tracker placed on a child’s belongings at a custody exchange could comply with one state’s law and violate another’s, especially when parents live across a state line. Check your own statute before doing anything.
Federal Law Does Not Cover This the Way People Assume
The federal Electronic Communications Privacy Act prohibits intercepting wire, oral, or electronic communications without authorization.2Office of the Law Revision Counsel. United States Code Title 18 Section 2511 That covers wiretapping, reading someone’s email, or recording conversations. The statute’s definition of electronic communication explicitly excludes signals from tracking devices, so ECPA does not directly regulate a parent placing a GPS tracker on a child. The absence of a federal rule does not mean tracking is legal where you live. State law is doing the work here.
How the Common Tools Play Out
The equipment has changed, the legal question has not: does the other parent know about the tracking and consent to it?
Family Locator Apps
Apps like Life360 can cut down on constant “where are you?” texts and give both parents reassurance. They also run both directions. If your child’s phone runs Life360 during the other parent’s time, you are watching that household in real time. Mutual, agreed-upon use is one thing. An app installed on the child’s phone without the other parent’s knowledge is functionally the same as a hidden GPS device, and courts treat it that way.
AirTags and Bluetooth Trackers
Small Bluetooth trackers have become a real problem in custody disputes. Apple and similar manufacturers now build in anti-stalking alerts that notify people when an unknown tracker is traveling with them, and the tags themselves emit a sound after being separated from their owner for a period of hours. Slipping one into a child’s bag during the other parent’s time is likely to be discovered fast, and the discovery itself becomes evidence of covert surveillance in the next hearing.
GPS Smartwatches for Younger Kids
Watches marketed for kids offer location tracking without full smartphone access. The child wears them openly, and both parents are usually aware. When both agree, they are generally uncontroversial. Trouble starts when one parent supplies the watch and quietly monitors the feed without telling the other, or when one parent tells the child to take it off during their time and the other objects.
When Courts Will Actually Permit Tracking
Judges are not categorically against location tracking. They allow it when specific facts justify it, and the common thread is a concrete safety concern rather than a general wish to keep tabs on the other household.
- Kidnapping risk. When credible evidence shows a parent might flee the jurisdiction with the child, a court can build GPS monitoring into the parenting plan. Judges typically try less invasive tools first, like passport surrender or check-ins.
- Special needs children. Children with autism or other conditions that cause wandering may need location tracking as a safety measure. About half of children with autism exhibit bolting behavior, and courts generally recognize GPS as a legitimate part of a safe parenting plan. Both parents usually need to agree, or the court has to authorize it specifically.
- Protective orders. Where domestic violence is involved, the dynamics change. In some states, consent previously given for location tracking is automatically revoked when one party files for a protective order. A parent under a protective order who keeps tracking the other parent or the child can face criminal charges on top of contempt.1NCSL. Private Use of Location Tracking Devices: State Statutes
- Substance abuse concerns. When a parent has a documented history of substance abuse and the court is worried about impaired driving with the child, tracking may be permitted as a condition of unsupervised visitation.
In each of these situations, the tracking is either ordered by the court or approved by it. That is the distinguishing feature. A parent who decides on their own that their circumstances justify tracking, without a court order, is taking on serious legal risk even if the underlying worry is legitimate.
Getting Tracking Into the Order the Right Way
If you believe location monitoring is necessary, put it in the custody order rather than doing it on your own. File a motion to modify and ask the court to include location monitoring in the parenting plan. The court evaluates the request using the best interests of the child standard, so you need a specific factual basis for why tracking protects the child, not just your peace of mind.
Judges are more receptive when the request is mutual. Proposing that both parents have access to the child’s location through a shared app, rather than one-way access for you, signals cooperation rather than control. Practical details help: which app or device, who sees the data, whether the data can be used in future proceedings, and what happens if a parent disables the tracking during their time. A well-drafted provision heads off future fights.
If your co-parent agrees voluntarily, formalize it through a stipulated modification filed with the court. A verbal side agreement offers little protection if the other parent later changes their mind and says you tracked them without consent.
Consequences of Tracking Without Permission
Unauthorized tracking during the other parent’s time can hit you on several fronts at once.
- Contempt of court. If your order prohibits surveillance, or the judge reads tracking as a violation of the order’s terms, the other parent can file for contempt. Findings can carry fines, mandatory parenting classes, or, in serious cases, jail.
- Custody modification. A pattern of controlling behavior shown through tracking can prompt the court to change custody. The tracking parent can lose custodial time or decision-making authority.
- Criminal charges. In states with tracking device statutes, unauthorized use of a GPS device or tag can be a criminal offense in its own right, separate from the custody case.
- Evidentiary backlash. Data pulled from unauthorized tracking often will not help you. Many jurisdictions exclude evidence obtained through illegal surveillance, and even when it comes in, judges tend to focus on the tracking parent’s conduct rather than whatever the data showed.
The worst version of this is a parent who tracks covertly, sees something genuinely alarming, and cannot use it because of how it was obtained. The tracking becomes the story, and the original concern gets buried. A parent who suspects real danger is better off reporting to child protective services or asking for an emergency custody hearing than running a private surveillance operation.