Mat King

Sheriff St. Clair County Sheriff's Office
Active
Status
Compromised
Credibility
6+
Years

Credibility Compromised

Brother of arrestee; did not recuse from matter (per court filings)

View Full Assessment

Overview

Elected Sheriff of St. Clair County, Michigan. When his brother Marc King was arrested for drunk driving, Sheriff King failed to recuse himself from the matter. Instead, he remained involved as the department he leads conducted its own internal investigation into the arrest of his own sibling. A federal judge denied him qualified immunity, allowing the civil rights lawsuit against him to proceed.

Background

Role in Key Incidents

Sheriff Mat King is the elected Sheriff of St. Clair County, Michigan. He is the brother of Marc King , who was arrested for Operating While Intoxicated (OWI) on November 6, 2022.

November 2022 OWI Incident

When his brother was arrested for drunk driving, Sheriff King did not recuse himself from the matter. According to sworn testimony and documented evidence:

  • Sheriff King was notified of his brother’s arrest the same day it occurred
  • He contacted Matthew Pohl and Jim Spadafore regarding the incident
  • No independent investigation was initiated
  • No external agency was engaged to handle the matter
  • The Sheriff maintained involvement despite the obvious familial conflict of interest

Governance Concerns

The Sheriff’s handling of his brother’s arrest raises serious questions about:

  • Conflict of Interest: No recusal despite direct family relationship to the arrestee
  • Command Interference: Direct involvement in a matter where he should have been recused
  • Oversight Failure: No independent investigation mechanism was utilized
  • Policy Gaps: No written policy requiring recusal in such circumstances

Deposition

Sheriff Mat King provided sworn testimony regarding these events. His deposition is available for review.

Credibility Assessment

FactorAssessment
Relationship to ArresteeBrother
Evidence HandlingUnclear
NeutralitySeverely Compromised

Incident Involvement

Notified of brother's arrest; failed to recuse from matter

Documented Concerns

  • No recusal despite direct family relationship
  • Department investigated his own brother
  • Federal judge denied qualified immunity

Election History

November 5, 2024

Sheriff

St. Clair County • General

Won Incumbent
Party: Republican

Opponents

Warren head (Write-In)

Mat King re-elected as Sheriff despite ongoing litigation (Jones v. St. Clair County) and accountability concerns. Warren Head, who lost the August primary by 2,856 votes, continued as a write-in candidate in the general election. Head had specifically cited the Jones lawsuit and concerns about departmental conduct as reasons for his candidacy.

This election occurred while federal litigation alleging First Amendment retaliation was pending against Sheriff King and other department officials.

August 6, 2024

Sheriff

St. Clair County • Primary

Won Incumbent
Votes: 13,584 (55.9%)

Opponents

Warren head
10,725 (44.1%)

Incumbent Sheriff Mat King defeated challenger Warren Head in the Republican primary. Head, the Yale Police Chief, cited concerns about departmental conduct and specifically referenced “the situation surrounding the lawsuit by former Sheriff’s Lieutenant Scott Jones” as motivation for his candidacy. No Democratic candidate filed for the position, making the primary effectively the general election.

November 3, 2020

Sheriff

St. Clair County • General

Won
Party: Republican

Mat King elected Sheriff of St. Clair County unopposed. No Democratic candidate ran for the position. King had served with the Sheriff’s Office since 1998, working his way up to the rank of Captain.

Following outgoing Sheriff Tim Donnellon’s early retirement on November 8, 2020 (to accept a position with the Michigan Gaming Control Board), King was appointed interim Sheriff by a panel consisting of Prosecutor Mike Wendling, Probate Judge Elwood Brown, and County Clerk Jay DeBoyer, per Michigan statute. His elected term officially began January 1, 2021.

August 4, 2020

Sheriff

St. Clair County • Primary

Won

Mat King ran unopposed in the Republican primary after incumbent Sheriff Tim Donnellon announced he would not seek re-election. No Democratic candidates filed for the position.

Depositions

Credibility Assessment

Credibility Compromised

Failed to recuse despite direct family relationship with arrestee. Department he commands investigated his own brother's arrest.

Neutrality Severely Compromised
Recusal Failed to recuse
Relationship to arrestee Brother

Employment

Department
St. Clair County Sheriff's Office
Start Date
January 2020

Connections

Litigation

Jones v. St. Clair County, et al. Qualified Immunity Denied

Case No. 2:24-cv-11965

Defendant Individual capacity

Also Mentioned In

Tags

sheriff defendant conflict-of-interest qualified-immunity-denied