When can a private citizen make a citizen's arrest in Wisconsin?

1. Statutory Authority

Wisconsin has no general citizen's arrest statute. Authority derives from common law (Radloff v. National Food Stores, Inc., 20 Wis. 2d 224 (1963)). Some related authorities exist by statute (e.g., merchants under Wis. Stat. § 943.50(3)).

2. Felony Standard

A private person may arrest without warrant for a felony committed in their presence, or where a felony has actually been committed and the citizen has reasonable grounds to believe the arrestee committed it.

3. Misdemeanor Standard

For misdemeanors, the offense must be a breach of the peace committed in the citizen's presence. Ordinary misdemeanors do not authorize private arrest.

4. Georgia Post-Arbery Comparison

Georgia repealed its broad citizen's arrest statute via HB 479 in May 2021 after Ahmaud Arbery's killing. Wisconsin has not modified its common-law citizen's arrest doctrine.

5. Force Permitted

Reasonable force is permitted to effect a lawful arrest. Deadly force by a private person is restricted to self-defense circumstances under Wis. Stat. § 939.48.

6. Hand-Off Duty

The arrestee must be delivered without unnecessary delay to a law enforcement officer.

7. Risks

False imprisonment (Wis. Stat. § 940.30), kidnapping (§ 940.31), battery, and civil tort liability for false arrest and battery.

8. Shopkeeper's Privilege

Wis. Stat. § 943.50(3) authorizes merchants and their employees to detain a person they have probable cause to believe is shoplifting, in a reasonable manner for a reasonable time, with statutory immunity from civil/criminal liability.

9. Stand-Your-Ground / Castle Doctrine

Wis. Stat. § 939.48(1m) provides a castle doctrine presumption for dwellings, vehicles, and businesses. Separate from arrest authority.

10. Practical Recommendation

Wisconsin attorneys advise calling 911. Common-law authority is narrow, and Wisconsin actively prosecutes false-imprisonment cases.

This is legal information, not legal advice.