Reference Guide

Can Police Search Your Phone in Wisconsin?

Can police search your phone in Wisconsin? The warrant rule, what consent really means, how long a phone is held, and how a defense lawyer pushes back.

They have your phone

Whatever else happened, this is the part that is keeping you awake. Not the charge. The phone. Your messages, your photos, your banking, your location for the last two years, the group chat you would not want read aloud in a courtroom.

We are Cafferty, Scheidegger & Johnson, S.C. We have defended people in Racine, Kenosha and Walworth County since 1994, and our line is (262) 632-5000. This page is the plain version of what the law actually says about a phone, with the official source next to each point so you can check it yourself.

The short version

Seizing a phone and reading what is inside it are two different acts. The first can happen fast. The second normally requires a warrant signed by a judge.

Consent is a legal event. If you hand the phone over when asked, you may have supplied the authority that was otherwise missing. You are allowed to say no, and saying no is not evidence of guilt.

A phone kept as evidence is not gone forever, but the route back is a written application to the circuit court, and it has a 120 day deadline attached to the initial appearance.

The rule for what is inside the phone is federal, and it is one sentence

This is one of the rare areas where the answer does not start in Wisconsin. It starts with a decision of the United States Supreme Court, which binds every court in this state.

Riley v. California, 573 U.S. 373 (2014), is a federal decision. The holding, as printed in the official United States Reports:

“Held: The police generally may not, without a warrant, search digital information on a cell phone seized from an individual who has been arrested.”

The Court was blunt about why the old rule for pockets and cigarette packs does not transfer to a phone:

“Officers may examine the phone’s physical aspects to ensure that it will not be used as a weapon, but the data on the phone can endanger no one.”

And the closing instruction to police, three words long, is “get a warrant.”

Two honest qualifications, because a page that leaves them out is selling you something. First, the word in the holding is generally. The Court expressly kept other exceptions alive: “even though the search incident to arrest exception does not apply to cell phones, other case-specific exceptions may still justify a warrantless search of a particular phone,” giving a real emergency as the example. Second, Riley is about searching the phone, not about whether the phone can be taken and held while a warrant is sought.

What Wisconsin law adds on top

Wisconsin has its own search statutes, and they matter because they are what a Racine or Kenosha County judge is working from.

The list of lawful searches. § 968.10 says a search may be made “Incident to a lawful arrest,” “With consent,” “Pursuant to a valid search warrant,” and in three other listed situations. Note what is doing the work: consent sits in the list as its own independent basis.

What a search incident to arrest is for. § 968.11 says that when a lawful arrest is made an officer “may reasonably search the person arrested and an area within such person’s immediate presence” for four listed purposes: protecting the officer, preventing escape, and seizing fruits or evidence of the offense. Read that next to Riley and the point lands: a phone in your pocket can be taken under this statute. The photographs inside it are a separate question.

What a warrant is. § 968.12(1) defines it as “an order signed by a judge directing a law enforcement officer to conduct a search of a designated person, a designated object or a designated place for the purpose of seizing designated property,” and says “A judge shall issue a search warrant if probable cause is shown.”

Your data is legally a “document.” This one is genuinely useful and almost nobody mentions it. § 968.13(2) says that in that section, “documents” includes “books, papers, records, recordings, tapes, photographs, films or computer or electronic data.” That matters because documents get their own paragraph: § 968.13(1)(d) allows seizure of “Documents which may constitute evidence of any crime, if probable cause is shown that the documents are under the control of a person who is reasonably suspected to be concerned in the commission of that crime.” The ordinary evidence paragraph, § 968.13(1)(c), covers “Anything other than documents.” So the statute treats the contents of your phone as a category with its own showing, and whether that showing was made is a real thing to look at in a real case.

“Do you mind if I take a look?”

That sentence is not small talk. It is a request for the legal authority the officer may not otherwise have, and § 968.10(2) is why it works.

Three things worth knowing before you answer it.

A request is a request. If an officer already had a warrant, the normal course is to serve it rather than ask permission.

Refusing is not evidence. The annotation to article I, section 11 of the Wisconsin Constitution, published by the Wisconsin Legislature, states:

“It is a violation of a defendant’s right to due process for a prosecutor to comment on the defendant’s failure to consent to a warrantless search. It has long been a tenet of federal jurisprudence that a defendant’s invocation of a constitutional right cannot be used to imply guilt.”

That is State v. Banks, 2010 WI App 107.

Consent has edges. “You can check my texts” and “here, take the phone” are not the same sentence. If you do consent, what you consented to becomes a question of fact later, which is one more reason to write down exactly what was said while you still remember it.

Passcode, face or fingerprint: what we can and cannot tell you

Here is where most pages on this topic quietly invent an answer. We are not going to.

Article I, section 8 of the Wisconsin Constitution says that no person “may be compelled in any criminal case to be a witness against himself or herself.” That is the provision the argument runs through.

We searched for a Wisconsin statute or a published Wisconsin appellate decision deciding whether that clause stops a court from ordering you to unlock a phone, and whether the answer differs between a passcode you type and a face or a fingerprint the phone reads. We did not find one. If someone tells you Wisconsin has settled it, ask them for the citation before you rely on it.

What is not in doubt is the practical difference, and it is worth understanding even though it is not a legal ruling. A passcode has to come out of your head and be produced by you. A face or a fingerprint does not: a locked phone that wants a typed passcode cannot be opened by holding it up to somebody’s face.

The useful move, when a phone is being asked for or an unlock is being requested, is not to guess. It is to say you want to speak to a lawyer first, and then actually stop. Read why you should never talk to the police and can the police legally lie to you in Wisconsin for how that conversation tends to go.

The phone they kept

A phone held as evidence is not lost, and there is a written procedure for getting it back that most people never hear about.

Under § 968.20(1), any person claiming the right to possession of property “seized pursuant to a search warrant or seized without a search warrant … may apply for its return to the circuit court for the county in which the property was seized or where the search warrant was returned.” Then the sentence that catches people:

“If an initial appearance under s. 970.01 is scheduled, the application for the return of the property shall be filed within 120 days of the initial appearance.”

§ 968.20(1g) sets the hearing, which “shall occur no more than 30 days after a motion is filed” absent an agreed or good cause extension, and lists what the court must find. The first ground is that the state will likely have to return it and “the property is not reasonably needed as evidence or for other investigatory reasons or, if needed, satisfactory arrangements can be made for its return for subsequent use.”

Practical translation: the argument is not “I want my phone.” The argument is that the state does not still need the object, usually because a forensic image was taken months ago and the physical handset is doing nothing for anyone.

What they can get without ever touching your phone

Losing this fight is not the same as losing the phone. Wisconsin has a separate statute for going to the company instead of to you, and it draws a line worth knowing: § 968.375.

A subpoena reaches the envelope. On a showing of probable cause, a judge may order a provider to disclose subscriber records: name, address, “Local and long distance telephone connection records, or records of session times and durations,” length and type of service, device or subscriber numbers “including any temporarily assigned network address,” and the “Means and source of payment … including any credit card or bank account number.”

A subpoena does not reach the letter. § 968.375(2)(b): “A subpoena under this subsection may not require disclosure of the contents of communications.”

A warrant reaches both, plus location. § 968.375(3) covers “The content of a wire or electronic communication that is in electronic storage” and “A record or information that identifies the location of a device used to transmit electronic or wire communications.”

And you may not be told. Under § 968.375(10) a judge “may issue an order prohibiting the person on whom the subpoena or warrant is served from disclosing the existence of the subpoena or warrant to the customer or subscriber unless the judge subsequently authorizes such disclosure.”

That last one explains a common experience: nobody searched your phone, and your messages are still in the file.

A different route entirely: what a company already found

There is one more path, and Wisconsin has recent law on it. When a private platform’s own automated system flags something and hands it to police, the analysis is not the warrant analysis at all. We wrote that one up separately in when Wisconsin police can view your Snapchat or phone content without a warrant.

If you read nothing else
  1. Taking the phone and reading the phone are different. Reading it normally needs a warrant: Riley v. California, 573 U.S. 373 (2014), federal.
  2. “Can I take a look?” is a request. § 968.10(2). You can decline, and declining cannot be used against you.
  3. Do not guess about unlocking it. Wisconsin has not published an answer we could find. Ask for a lawyer first.
  4. The 120 day clock in § 968.20(1) runs from the initial appearance, and it is how you get the handset back.
  5. Your provider is a separate door. § 968.375, and you may be under a court order not to hear about it.
  6. Call when you want to, including at 3am: (262) 632-5000.

Where we are

Our Racine office is at 840 Lake Avenue and our Kenosha office is at 7001 30th Avenue, Kenosha, WI 53142. We appear in Walworth County court regularly, though we do not keep an office there. The first conversation costs nothing: contact us or call (262) 632-5000.

If the phone was taken during an OWI stop, the deadlines on the driving side move faster than the criminal case and are covered at racineowi.com. If it was a traffic citation, see racineticket.com. If someone else was arrested and you are the one reading this at two in the morning, start with someone you love was just arrested.


This page is plain-English legal information about Wisconsin and federal procedure, not legal advice, and reading it does not create an attorney-client relationship. Every case turns on its own facts. Statutes change; confirm current text at docs.legis.wisconsin.gov. The federal decision discussed here is published at supremecourt.gov.

Questions people actually ask

Can police search my phone after an arrest in Wisconsin?
Generally not without a warrant. In Riley v. California, 573 U.S. 373 (2014), a federal decision of the United States Supreme Court, the Court held that the police generally may not, without a warrant, search digital information on a cell phone seized from an individual who has been arrested. Taking the phone and reading what is inside it are two different acts. The Court noted that officers may examine the phone's physical aspects to ensure that it will not be used as a weapon, but the data on the phone can endanger no one. Riley also left room for other exceptions in individual cases, including genuine emergencies, so the honest answer is a warrant is normally required and there are narrow situations where it is not. If your phone has been taken, call Cafferty, Scheidegger & Johnson, S.C. at (262) 632-5000.
Can I say no if a police officer asks to look through my phone?
Consent is one of the lawful bases for a search under Wis. Stat. § 968.10, which lists searches made With consent. A request is a request. Declining is not itself evidence of anything: the annotation to article I, section 11 of the Wisconsin Constitution, published by the Legislature, states that it is a violation of a defendant's right to due process for a prosecutor to comment on the defendant's failure to consent to a warrantless search, citing State v. Banks, 2010 WI App 107. If you say no and officers believe they have grounds, the ordinary route is that they apply to a judge for a warrant under Wis. Stat. § 968.12.
Do I have to give police my phone passcode in Wisconsin?
We are not going to pretend this is settled. Article I, section 8 of the Wisconsin Constitution says no person may be compelled in any criminal case to be a witness against himself or herself. We looked for a Wisconsin statute or a published Wisconsin appellate decision deciding whether that covers being ordered to type in a passcode, or to unlock a phone with a face or a fingerprint, and we did not find one. Anyone who tells you Wisconsin has answered that question should be asked to produce the citation. The practical point is that this is exactly the moment to say you want to speak to a lawyer before you do anything.
How long can police keep my phone as evidence in Wisconsin?
There is no fixed number of days, but there is a procedure. Under Wis. Stat. § 968.20(1), a person claiming the right to possession of seized property may apply for its return to the circuit court for the county in which the property was seized or where the search warrant was returned, and if an initial appearance is scheduled, that application shall be filed within 120 days of the initial appearance. Under Wis. Stat. § 968.20(1g) the court holds a hearing, ordinarily within 30 days of the motion, and may order the property returned if, among other findings, it is not reasonably needed as evidence or for other investigatory reasons. The 120 day window is the part people miss.
Can police get my text messages without taking my phone?
Sometimes, through the provider rather than through you. Wisconsin has a specific statute for this, Wis. Stat. § 968.375. A judge may issue a subpoena for subscriber records such as name, address, connection records and payment method, but § 968.375(2)(b) says such a subpoena may not require disclosure of the contents of communications. Content requires a warrant under § 968.375(3), which also reaches a record or information that identifies the location of a device used to transmit electronic or wire communications. Under § 968.375(10) a judge may order the provider not to tell you it happened, which is why people are sometimes surprised by their own messages in discovery.
Can police look at my phone during a traffic stop?
A traffic stop does not by itself create authority to read a phone. Wis. Stat. § 968.10 lists the lawful bases for a search, and a phone's contents are governed by the warrant rule in Riley. What does happen at roadside is that people hand the phone over when asked, which converts the question into a consent question. If the stop is an OWI investigation, see racineowi.com, and if it is a citation, see racineticket.com.
Police already went through my phone. Is it too late to do anything?
No. Whether a search was lawful is litigated after the fact, not at the roadside, and it is normal for that fight to happen weeks or months later once the paperwork exists. The useful things to preserve now are simple: what you were told, whether you were asked for consent and what you said, whether you were shown a warrant, and what was taken. Write it down while it is fresh, stop discussing the case on recorded jail phones, and get a lawyer looking at the warrant and its supporting affidavit. Our line is (262) 632-5000.