Last reviewed: October 20, 2026
If you live in Michigan and start researching automated license plate readers, one question appears quickly:
Are there statewide rules for this?
As of October 20, 2026, we have not identified an enacted Michigan law that comprehensively regulates automated license plate reader systems across state and local government.
Michigan does have constitutional protections, criminal-justice information rules, public-record requirements and agency policies that can affect particular parts of ALPR use.
Michigan State Police also maintains procedures for ALPR access to the Law Enforcement Information Network, or LEIN.
And Michigan lawmakers introduced several ALPR-specific bills during 2026.
Those bills are proposals.
They are not current law unless and until they are enacted.
This page is informational, not legal advice.
Surveillance law is changing.
Different facts can produce different legal results. Local policies, contracts and agency practices also vary.
If a specific legal dispute matters to you personally, talk with a qualified Michigan attorney.
For campaign purposes, our job is simpler:
understand what rules actually exist, distinguish enacted law from proposed legislation and never claim Michigan prohibits something unless the law really does.
Michigan does not currently have one simple statewide ALPR rulebook.
There is no single Michigan statute we can point residents toward and say:
Here are all the rules governing Flock cameras.
Instead, several layers can matter.
Federal constitutional law applies.
Michigan constitutional protections apply.
Criminal-justice information rules apply.
Department policies apply.
Contracts apply.
Local government policies may apply.
And the Michigan Legislature is actively considering ALPR-specific legislation.
That means the local answer still requires research.
Michigan police already use ALPR with LEIN information.
Michigan State Police operates the Law Enforcement Information Network, usually called LEIN.
MSP currently provides an Automated License Plate Reader File to authorized law-enforcement agencies.
According to MSP, agencies using license plate screening technology can receive an automatically updated extract combining relevant Michigan LEIN and FBI National Crime Information Center information.
The file is updated four times each day.
It can include records involving categories such as stolen vehicles, stolen plates, wanted people and missing people, along with other eligible criminal-justice records.
Agencies requesting access must enter into an agreement with MSP.
Read Michigan State Police’s current LEIN access information ↗
An ALPR alert still needs confirmation.
Michigan State Police says hits generated from the LEIN ALPR file must be confirmed through LEIN and/or the National Crime Information Center according to applicable hit-confirmation rules.
That is an important safeguard.
An automated match is not supposed to become unquestioned fact merely because a computer produced it.
An automated result should begin an investigative check, not replace one.
Read: ALPR Hits, Traffic Stops & False Matches →
Michigan courts have said police can check a visible license plate.
Michigan appellate case law recognizes that a license plate displayed on a vehicle in public does not carry the same expectation of privacy as information hidden from public view.
That is relevant law.
It does not answer every question about modern ALPR networks.
There is an important technological difference between:
An officer sees one plate and checks it.
and:
A network automatically records large numbers of plates, attaches time and location, stores the observations, connects many cameras and lets users search historical movement.
A ruling about a single visible plate check should not be stretched into a claim that Michigan courts have already approved every possible form of networked historical ALPR surveillance.
Federal location-privacy cases still matter.
Michigan police agencies are also subject to the United States Constitution.
The Supreme Court’s decisions involving GPS tracking, historical cell-location information and other digital location records therefore remain relevant to the larger constitutional discussion.
Those cases do not automatically make Michigan ALPR networks unconstitutional.
They do establish that technology can change the privacy analysis when isolated public observations become a detailed, searchable history of movement.
Read: The Fourth Amendment & Location Tracking →
Michigan lawmakers are considering specific ALPR legislation.
In January 2026, Michigan House members introduced House Bills 5492 and 5493.
HB 5492 concerns private operators of ALPR systems.
HB 5493 concerns use by state and local governmental entities.
Both were introduced on January 29, 2026 and referred to the House Judiciary Committee.
As of October 20, 2026, we have not found either enacted into law.
That means they should be described as:
pending legislation
not:
Michigan ALPR law.
HB 5493 would create statewide rules for government ALPR use.
The introduced version defines an automatic license plate reader system as a system using fixed or mobile automated cameras and computer algorithms to convert license-plate images into computer-readable information.
Its definition of captured plate data goes beyond the characters on the plate and includes information such as location, date and time, photographs and vehicle characteristics captured, derived or inferred by the system.
That proposed definition reflects an important reality:
ALPR data is location data attached to a vehicle observation, not merely a plate number.
The bill also proposes limits on government use and requirements for publicly available policies.
Those are proposed protections.
They are not restrictions we should tell residents currently apply statewide.
HB 5492 addresses private ALPR operators.
The companion House bill focuses on private entities operating ALPR systems and their handling of captured plate data.
That matters because ALPR surveillance is not always confined to cameras physically owned by government.
Private systems can become part of the larger surveillance environment when their information becomes available for government use.
That is one reason our campaign looks at access and function, not simply ownership of the camera.
A separate Senate proposal arrived in July.
On July 29, 2026, Senate Bill 1131 was introduced and referred to the Senate Committee on Civil Rights, Judiciary, and Public Safety.
It also proposes statewide rules governing government use of automatic license plate reader systems.
As of October 20, 2026, the official committee record still lists it as referred rather than enacted.
View the official Senate committee record ↗
The existence of multiple bills tells us something important:
Michigan policymakers are actively debating how ALPR technology should be governed.
Four more Michigan House bills were introduced in September.
On September 24, lawmakers introduced House Bills 6346 and 6411-6413. As of this review, the bills had been referred to committee and had not become law.
The introduced versions would address different parts of the problem:
- HB 6346 would generally bar Michigan law-enforcement agencies from sharing captured plate data with out-of-state law enforcement unless directed by a court order, while adding plate data to existing restrictions on personal use or gain.
- HB 6411 would prohibit personal-curiosity searches, unauthorized disclosure, commercial or unrelated private use, credential sharing and insecure transmission; it would generally set a 30-day retention limit with listed exceptions.
- HB 6412 would create criminal penalties for violations of the restrictions proposed in HB 6411.
- HB 6413 would place repeat offenses from HB 6412 in Michigan’s sentencing guidelines.
Read the bill-by-bill summary and links to introduced text ↗
These proposals respond to real failure modes, including personal searches, credential sharing and interstate access. They remain proposals. None should be described as a protection Michigan residents already have.
A Michigan member of Congress introduced a broader federal bill.
On October 13, 2026, Rep. Rashida Tlaib introduced H.R. 10807, the Get the Flock Out of Our Communities Act. The introduced bill would restrict federal funding and federal use of automated mass-surveillance systems and tie certain federal law-enforcement grants to state and local nonuse. It was referred to House committees and has not become law.
Read the introduced bill and official status on GovInfo ↗
Read the sponsor’s summary of the proposal ↗
This is relevant to Metro Detroit because the announcement occurred in Inkster and because several local systems have used federal grants or forfeiture funds. It does not itself cancel any local contract.
Proposed safeguards are not the same thing as our campaign goal.
Some proposed legislative restrictions could reduce specific harms.
Clear use limitations can reduce misuse.
Public policies improve transparency.
Retention limits can reduce the amount of historical information available.
Access rules can reduce uncontrolled sharing.
Verification requirements can help prevent dangerous mistakes.
Those are meaningful issues.
But DeFlock Metro Detroit’s final goal remains different.
We are working for removal and nonrenewal of covered mass vehicle-tracking systems.
A statewide law regulating ALPR does not automatically answer whether Redford, Livonia or another municipality should continue buying it.
Legal permission is not a command to deploy the technology.
A regulated surveillance system is still a surveillance system.
Imagine a future state law requiring strong auditing, short retention, written policies, restricted sharing and defined search purposes.
Those safeguards could make an operating ALPR system less risky.
They would not change the underlying collection model:
ordinary vehicles are still recorded;
time and location are still attached;
records still exist;
authorized searches still occur;
and networked movement surveillance still becomes government infrastructure.
Our policy conclusion can therefore remain:
These safeguards are better than weak safeguards, and we still want the system removed.
Those statements are not contradictory.
State law can set a floor. Local government can still say no.
Suppose Michigan eventually creates rules saying an ALPR system may legally operate if certain conditions are met.
A township board can still decide:
We do not want one.
A city council can still refuse the contract.
A municipality can still decline renewal.
A police department can still decide another investigative approach is better.
State regulation does not automatically require local deployment.
Local democratic decisions still matter.
Local policy matters right now.
For an existing municipal program, find the department’s:
ALPR policy;
privacy policy;
retention rules;
sharing rules;
audit procedures;
user-access rules;
and verification requirements.
Then compare those documents with the actual vendor capabilities and configuration.
Policy is not the same thing as technology.
And neither automatically proves actual use.
Read: How to Read an ALPR Policy →
The contract matters too.
A department policy may say one thing.
The vendor agreement may reveal something else about retention, products, software, sharing, data handling, renewal and termination.
This is why our research does not rely on one document.
The strongest local picture usually comes from combining:
the contract
the policy
the configuration
and:
evidence of actual use.
Read: Contracts, Costs & Renewal Windows →
Michigan FOIA remains an important research tool.
Michigan’s Freedom of Information Act can be used to request existing public records from covered public bodies, subject to exemptions and other legal limits.
That can include records useful for ALPR oversight such as contracts, invoices, policies, meeting records and procurement material.
Michigan FOIA is not a questionnaire.
Request the records that answer the question.
And remember that Michigan law generally requires identifying information from non-indigent requesters rather than allowing people to invent anonymous requester identities.
Read our Michigan Public Records Guide →
Watch the Legislature, but do not confuse a bill with a law.
This is one of the easiest mistakes to make online.
A bill can be introduced, referred to committee, amended, reported, passed by one chamber, passed by both, sent to the governor, signed or enacted with a future effective date.
Those stages matter.
If pending ALPR legislation becomes relevant to a campaign claim, check its current status before publishing.
What does this mean for Metro Detroit right now?
Residents cannot simply assume:
Michigan law already takes care of this.
For a local ALPR deployment, we still need to ask:
What system was purchased?
What does the contract allow?
What does department policy permit?
What retention is configured?
Who can access the data?
Who can search outside data?
How are hits verified?
How are searches audited?
When does the contract renew?
And finally:
Does our community want this system at all?
Those remain local questions even while Lansing debates statewide rules.
Our position on legal compliance
At an absolute minimum, government surveillance systems should comply with every applicable constitutional, statutory, contractual and policy requirement.
That should not be controversial.
But legal compliance is the beginning of public oversight.
Not the end.
A system can be operated exactly as current law permits and still be something residents decide their government should not use.
The short version
As of October 20, 2026:
Michigan law enforcement uses ALPR technology and Michigan State Police supports ALPR comparison against eligible LEIN and NCIC information.
Michigan courts have recognized that police can check a license plate plainly visible in public.
That does not resolve the constitutional question presented by large, historical, networked movement databases.
Michigan lawmakers have introduced ALPR-specific legislation in 2026, including House Bills 5492, 5493, 6346 and 6411-6413, plus Senate Bill 1131.
Those proposals are not currently enacted statewide ALPR law.
And local communities still have the power to ask a simpler question:
Even if we can operate this surveillance system, should we?
Our answer is no.