Anyone
(No Law Enf. Authority)

Off-Duty

On-Duty

Probable Cause Occurring
IN Jurisdiction

Probable Cause Occurring OUTSIDE Jurisdiction

Officer Witnessed

Another Agency

Privilege
 - WI Stat. 939.45

Aiding an officer
 - WI Stat. 946.40
 - WI Stat. 968.07(2)

Self Defense
 - WI Stat. 939.48(1)

Defense of Others
 - WI Stat. 939.48(4)

Prevent Suicide
 - WI Stat. 939.48(5)

Defense of Property
 - WI Stat. 939.49(1)

Citizen’s Arrest
 - Common Law
 - NO statutory authority
 - Strict Liability
 - Permissable for:
   (In Progress)
     - Breach of the Peace
     - Homicide
     - Burglary
     - Intoxicated Driver
     - Affray
     - Assault in Progress

Retail Theft - Detention
 - WI Stat. 939.49(2)
 - WI Stat. 943.50(3)

Theft - Library Materials
 - WI Stat. 943.61

As limited by department - through written policy

 - Lowered Cognitive Skills

 - Secondary Employment
   - Law Enf. Related
   - Non-Law Enf. Related

 - Crimes in Progress

In-Jurisdiction:
 - numerous WI stat, incl:
 - St. Invest. - WI 165.70
 - St. Traffic - WI 110.07
 - St. Inspect. - WI 110.07
 - St. Wardens - WI 23.11
 - Counties - WI 59.24
 - Co. Traffic - WI 83.016
 - Tribal - WI 165.92
 - 1st Cities - WI 62.50
 - Police - WI 62.09(13)
 - Village Police - WI 61.13
 - Constable - WI 61.29
 - Constable - WI 60.35
 - Town Police - WI 60.56
 - Marshall - WI 61.28
 - Humane Off. - WI 58.07
 - Univ. Police - WI 36/11(2)
 - Railroad - WI 192.47
 - School Off. - WI 118.16

City in Two Counties
 - WI Stat. 62.26(6)

Deputy Wardens
 - WI Stat. 29.07

Fresh Pursuit
 - WI Stat. 175.40(2) & (3)

Intoxicated Driver
 - WI Stat. 349.03(4)

Close Pursuit
 - WI Stat. 976.04

Entire Width of Roadway
 - WI Stat. 175.40(4)

Boundary Waters
 - WI Stat. 2.04

Felony/Emer. Exception
 - WI Stat. 175.40(6)
 - Policy required

Milwaukee Co. Exception
 - WI Stat. 175.40(5)
 - Policy required

Mutual Aid - w/in WI
 - WI Stat. 59.24(2)
 - WI Stat. 66.305
 - WI Stat. 66.315

County-Tribal
 - WI Stat. 165.90

Mutual Aid - outside WI
 - Border Counties ONLY
   - any law enf. agency
 - WI Stat. 175.46
 - Policy required
 - review by WI DOJ
 - See also:
   - WI Stat. 102.03(5)(e)
   - WI Stat. 895.46(7)
 - See also:
   - MN Stat.