Senate Bill 419
Emergency testing of a criminal defendant for certain diseases. (FE)
Topics: Court: Officers, Crime and criminals, Disease, District attorney, Police, Prison
Became law
The governor signed it on Mar 20, 2026. It's .
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Introduced, passed
Sep 4, 2025
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Committee, passed
Approved
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Senate vote, passed
Passed Nov 18, 2025
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Assembly vote, passed
Passed Jan 13, 2026
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Governor, passed
Signed
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Law, here now
2025 Wisconsin Act 107
Latest entry in the official record, Mar 20, 2026: “Published 3-21-2026”
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The same bill was also filed in the Assembly as AB 417. That version died when the session ended.
Terms on this page
Wisconsin Act
The number a bill gets when it becomes law, like 2025 Wisconsin Act 12.
Official term: Act. More in the glossary
Legislative Reference Bureau
The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.
Official term: LRB analysis. More in the glossary
Author
A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.
Official term: Author, coauthor. More in the glossary
Signed on in support
Lawmakers who back a bill without being one of its authors, often from the other chamber.
Official term: Cosponsor. More in the glossary
Cost estimate
A state agency's estimate of what a bill would cost or save.
Official term: Fiscal estimate. More in the glossary
Roll call
A vote where each lawmaker's yes or no is recorded by name.
Official term: Roll call vote. More in the glossary
What it does
Summary by the , the Legislature's nonpartisan drafting office. It's their wording, not ours.
Under current law, in a criminal case for throwing or expelling bodily substances at a public safety worker or prosecutor or at specified individuals in a prison, if the district attorney has probable cause to believe that the act carried a potential for transmitting a communicable disease to the victim and involved the defendant’s blood, semen, vomit, saliva, urine, or feces or other bodily substance of the defendant, the district attorney must apply to the circuit court for an order to require the defendant to submit to testing to detect the presence of communicable diseases, and those results must be disclosed to the victim if certain criteria are met.
This bill amends the process under current law to apply to any crime if the district attorney has probable cause to believe that the act carried a potential for transmitting a communicable disease to a public safety worker, prosecutor, or correctional staff member and involved the defendant’s blood, semen, vomit, saliva, urine, or feces or other bodily substance of the defendant.
Read the full summary Show less
The bill also creates an expedited process for testing when it is requested by a public safety worker, prosecutor, or correctional staff member. Under the bill, the district attorney may, at any time, regardless of whether criminal proceedings have commenced, apply to the circuit court for a waiver of the normal hearing requirement and for an emergency order to require the defendant to immediately submit to testing. Under the bill, the district attorney may make such an application only if the district attorney has probable cause to believe that waiving the hearing and expediting a defendant to submit to testing will prevent a public safety worker, prosecutor, or correctional staff member from experiencing bodily harm that could result from delaying the test. Under the bill, the court must immediately hear the application for an emergency order and grant the order if it finds that the existing requirements for such an order are met and also finds that waiving the hearing and expediting the defendant to submit to testing will prevent a public safety worker, prosecutor, or correctional staff member from experiencing bodily harm that could result from delaying the test.
The bill also provides that if a defendant is found guilty of a crime for which the court has required the defendant to submit to communicable disease testing, the defendant must be required to pay, as restitution, the costs of any communicable disease testing that was ordered.
Who's behind it
2 senators are its . All 2 are Republicans.
15 more lawmakers .
See all 17 names Hide the names
Authors (2)
- Dan Feyen · Republican, Senate
- Howard Marklein · Republican, Senate
Signed on in support (15)
- Elijah Behnke · Republican, Assembly
- Jill Billings · Democrat, Assembly
- Brienne Brown · Democrat, Assembly
- Barbara Dittrich · Republican, Assembly
- Steve Doyle · Democrat, Assembly
- Jodi Emerson · Democrat, Assembly
- Dean Kaufert · Republican, Assembly
- Rob Kreibich · Republican, Assembly
- Paul Melotik · Republican, Assembly
- Dave Murphy · Republican, Assembly
- Jeff Mursau · Republican, Assembly
- Jim Piwowarczyk · Republican, Assembly
- Joe Sheehan · Democrat, Assembly
- Lisa Subeck · Democrat, Assembly
- Chuck Wichgers · Republican, Assembly
What it would cost
State agencies filed a . Each opens as a PDF from the Legislature.
Versions and amendments
Every text the Legislature printed for this bill, including proposed changes. Each opens on the Legislature's site.
How lawmakers voted
There were 2 votes on this bill.
Senate Committee on Judiciary and Public Safety vote on an amendment
Passed, 8 to 0 · Oct 22, 2025
No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.
Official motion: “Report adoption of Senate Substitute Amendment 2 recommended by Committee on Judiciary and Public Safety, Ayes 8, Noes 0”. Official record · This vote on its own page
Senate Committee on Judiciary and Public Safety vote to recommend it
Passed, 8 to 0 · Oct 22, 2025
No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.
Official motion: “Report passage as amended recommended by Committee on Judiciary and Public Safety, Ayes 8, Noes 0”. Official record · This vote on its own page
What happened
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Mar 20, 2026
The new law was published.
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Mar 20, 2026
The governor signed it. It became 2025 Wisconsin Act 107.
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Mar 19, 2026
2 more representatives signed on in support.
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Mar 18, 2026
Sent to the governor.
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Jan 23, 2026 to Mar 17, 2026
3 more representatives signed on in support.
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Jan 13, 2026
The Assembly passed it too.
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Jan 7, 2026
Sent to the Assembly Committee on Rules.
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Nov 19, 2025
The Assembly received it.
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Nov 18, 2025
The Senate passed it.
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Nov 18, 2025
The Senate adopted it.
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Nov 13, 2025
A state agency sent in its estimate of the cost.
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Nov 11, 2025
A state agency sent in its estimate of the cost.
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Oct 22, 2025
The committee voted to recommend passing it, 8 to 0.
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Oct 22, 2025
“Report adoption of Senate Substitute Amendment 2 recommended by Committee on Judiciary and Public Safety, Ayes 8, Noes 0” (the official wording)
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Sep 17, 2025
The committee held a public hearing.
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Sep 4, 2025
Sent to the Senate Committee on Judiciary and Public Safety.
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Sep 4, 2025
Introduced in the Senate.
See the official record, word for word Hide the official record
- Sep 4, 2025 · Senate
Introduced by Senators Feyen and Marklein; cosponsored by Representatives Melotik, Behnke, Dittrich, Kaufert, Kreibich, Murphy, Mursau, Piwowarczyk, Sheehan and Wichgers
- Sep 4, 2025 · Senate
Read first time and referred to Committee on Judiciary and Public Safety
- Sep 17, 2025 · Senate
Public hearing held
- Sep 29, 2025 · Senate
Senate Substitute Amendment 1 offered by Senator Feyen
- Oct 1, 2025 · Senate
Senate Substitute Amendment 2 offered by Senator Feyen
- Oct 22, 2025 · Senate
Executive action taken
- Oct 22, 2025 · Senate
Report adoption of Senate Substitute Amendment 2 recommended by Committee on Judiciary and Public Safety, Ayes 8, Noes 0
- Oct 22, 2025 · Senate
Report passage as amended recommended by Committee on Judiciary and Public Safety, Ayes 8, Noes 0
- Oct 22, 2025 · Senate
Available for scheduling
- Nov 11, 2025 · Senate
Fiscal estimate received
- Nov 13, 2025 · Senate
Fiscal estimate received
- Nov 14, 2025 · Senate
Placed on calendar 11-18-2025 pursuant to Senate Rule 18(1)
- Nov 18, 2025 · Senate
Read a second time
- Nov 18, 2025 · Senate
Senate Substitute Amendment 2 adopted
- Nov 18, 2025 · Senate
Ordered to a third reading
- Nov 18, 2025 · Senate
Rules suspended to give bill its third reading
- Nov 18, 2025 · Senate
Read a third time and passed
- Nov 18, 2025 · Senate
Ordered immediately messaged
- Nov 19, 2025 · Assembly
Received from Senate
- Jan 7, 2026 · Assembly
Read first time and referred to committee on Rules
- Jan 8, 2026 · Assembly
Placed on calendar 1-13-2026 by Committee on Rules
- Jan 13, 2026 · Assembly
Rules suspended to withdraw from calendar and take up
- Jan 13, 2026 · Assembly
Read a second time
- Jan 13, 2026 · Assembly
Ordered to a third reading
- Jan 13, 2026 · Assembly
Rules suspended
- Jan 13, 2026 · Assembly
Read a third time and concurred in
- Jan 13, 2026 · Assembly
Ordered immediately messaged
- Jan 14, 2026 · Senate
Received from Assembly concurred in
- Jan 15, 2026 · Senate
Report correctly enrolled
- Jan 23, 2026 · Senate
Representative Doyle added as a cosponsor
- Mar 6, 2026 · Senate
Representative Brown added as a cosponsor
- Mar 17, 2026 · Senate
Representative Billings added as a cosponsor
- Mar 18, 2026 · Senate
Presented to the Governor on 3-18-2026
- Mar 19, 2026 · Senate
Representative Subeck added as a cosponsor
- Mar 19, 2026 · Senate
Representative Emerson added as a cosponsor
- Mar 20, 2026 · Senate
Report approved by the Governor on 3-20-2026. 2025 Wisconsin Act 107
- Mar 20, 2026 · Senate
Published 3-21-2026
Terms on this page
Wisconsin Act
The number a bill gets when it becomes law, like 2025 Wisconsin Act 12.
Official term: Act. More in the glossary
Legislative Reference Bureau
The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.
Official term: LRB analysis. More in the glossary
Author
A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.
Official term: Author, coauthor. More in the glossary
Signed on in support
Lawmakers who back a bill without being one of its authors, often from the other chamber.
Official term: Cosponsor. More in the glossary
Cost estimate
A state agency's estimate of what a bill would cost or save.
Official term: Fiscal estimate. More in the glossary
Roll call
A vote where each lawmaker's yes or no is recorded by name.
Official term: Roll call vote. More in the glossary
From the Wisconsin Legislature's official record, checked Sep 15, 2026. See the source
Wisconsin Act
The number a bill gets when it becomes law, like 2025 Wisconsin Act 12.
Official term: Act
Legislative Reference Bureau
The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.
Official term: LRB analysis
Signed on in support
Lawmakers who back a bill without being one of its authors, often from the other chamber.
Official term: Cosponsor
Cost estimate
A state agency's estimate of what a bill would cost or save.
Official term: Fiscal estimate
Roll call
A vote where each lawmaker's yes or no is recorded by name.
Official term: Roll call vote