Illinois Recording, Tracking & Surveillance Laws

At a glance

Adult subject — e.g., a spouse

Your own minor child

As a parent you generally have broad authority to monitor your own minor child — especially on a phone, computer, or vehicle you own or provide. The gray area is recording the child's conversations with other people, where wiretap law and the “vicarious consent” doctrine come in and outcomes vary — and if you're co-parenting, custody orders and the other parent's rights matter. Those are marked “seek legal advice.”

General (any subject)

Recording & consent

Illinois is an all-party consent state — with a history. Its original eavesdropping law was struck down by the Illinois Supreme Court in 2014 as overbroad, and the legislature quickly re-enacted a narrower version (720 ILCS 5/14-2). Today you commit eavesdropping if you surreptitiously record a private conversation — one where a party reasonably expects privacy — without the consent of all parties.

Two features matter: the recording must be surreptitious (hidden), and the conversation must be genuinely private. Open recording, and recording in public where no one expects privacy, fall outside the ban. The federal overlay still applies.

Recording law enforcement

Illinois expressly protects recording police: the eavesdropping statute exempts recording an officer performing public duties in a place where the officer has no reasonable expectation of privacy (720 ILCS 5/14-3). So openly recording police in public is lawful, as long as you don't physically interfere.

GPS & vehicle tracking

Illinois has no statute written only for consumer GPS trackers, but secretly tracking someone can be charged under the stalking statute (720 ILCS 5/12-7.3), which covers surveilling or following a person in a way that would cause fear. Tracking a vehicle you own is generally fine. Treat non-consensual tracking as a lawyer question.

Private-investigator licensing

Illinois requires a state license to work as a private detective, under the Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004 (225 ILCS 447), administered by IDFPR. Illinois has one of the stricter experience requirements — generally three years of documented full-time investigative experience within the last five years.

Out-of-state investigator reciprocity

Illinois's private-detective act doesn't offer a general reciprocity license we could confirm, and its three-year experience requirement is strict — an investigator licensed elsewhere normally needs Illinois licensure (or a licensed Illinois agency) to work here. Confirm current terms with IDFPR before working an Illinois case.

Hidden cameras in private areas

Secretly recording someone in a place where they have a reasonable expectation of bodily privacy — a restroom, tanning bed, locker room, changing room, or bedroom — is unauthorized video recording in Illinois (720 ILCS 5/26-4), a felony. Hidden cameras in private areas are off-limits. Illinois's Biometric Information Privacy Act (BIPA) can also apply to face or biometric data.

Cameras in your own home / nanny cams

You can put cameras in your own home, including nanny cams in common areas. The limits: don't aim a camera at a space a guest, tenant, or worker would reasonably treat as private (a bathroom, or a live-in caregiver's bedroom) — that risks the § 26-4 felony — and remember audio follows the all-party recording law. A hidden mic capturing private conversations can be unlawful even at home. BIPA may apply to biometric features.

Doorbell & outdoor cameras

A doorbell or outdoor camera covering your own porch, yard, or the street is fine — no reasonable expectation of privacy in public view. Trouble starts if you point a camera into a neighbor's window or fenced yard, or capture their private conversations (all-party audio). Aim at your property, not through someone else's walls.

Workplace & employee recording

Because Illinois is all-party, recording a workplace conversation generally needs everyone's consent. Illinois's Biometric Information Privacy Act (BIPA) adds strict rules for fingerprints, face scans, and other biometric data — with a private right of action. Secretly recording conversations you're not part of runs into the eavesdropping statute.

Drone surveillance

Illinois's Freedom from Drone Surveillance Act (725 ILCS 167) restricts law-enforcement drone use without a warrant, but there is no dedicated statute governing private drone surveillance of people. A private drone used to spy can still be reached by voyeurism (720 ILCS 5/26-4), trespass, and civil privacy law. Because there's no on-point private-conduct statute, treat drone surveillance of people as a lawyer question. FAA rules govern the airspace.

See an error or an out-of-date citation? Please let us know.

General legal information only, not legal advice, and no attorney-client relationship is created by reading it. Statutes and their interpretation change; entries may be incomplete or outdated. We disclaim all warranties and any liability for reliance on this page. Confirm the current law at the official Illinois Codes and consult a licensed Illinois attorney before recording, tracking, installing cameras, or gathering evidence.