Suspended 120 daysmost recent record, 2024 · as reported
Kieffer III has 2 sustained major discipline records from Trenton PD, spanning 2023 to 2024. The records include a suspension. Sustained charges across the records include: Conduct Unbecoming a public employee; Conduct Unbecoming of a Public Employee.
Discipline timeline, 2023 to 2024
AnalysisBar colour is this site's severity tier for the reported sanction.
2 records, 2023 to 2024
Major discipline records reported for Mark Kieffer III, by year
Officer Mark Kieffer III received a 120-day suspension from the Trenton Police Department in 2024, along with a loss of time. Kieffer made and circulated via text to other employees of the police department an inappropriate meme naming officers and supervisors regarding an active Internal Affairs investigation. The meme disclosed to the department the officers involved and the nature of the complaint of a confidential Internal Affairs investigation. The sustained charge was Conduct Unbecoming of a Public Employee.
Officer Mark Kieffer III made and circulated via text to other employees of the police department an inappropiate meme naming officers and supervisors regarding an active Internal Affairs investigation. The meme disclosed to the department the officers involved and nature of the complaint of a confidential Internal Affairs investigation.
Detective Mark Kieffer III received a 60-day suspension from the Trenton Police Department in 2023. During calendar year 2021 and 2022, Kieffer cancelled time from the Police Officer Scheduling System, resulting in misuse of accrued time. The sustained charge was Conduct Unbecoming a public employee.
During calendar year 2021 and 2022 Detective Mark Kieffer cancelled time from the Police Officer Scheduling System resulting in misuse of accrued time.
Similar records
AnalysisComputed by this site from shared agency, year, charge category, and sanction outcome. Not a legal or factual equivalence.
The amount is as reported by the New Jersey Department of the Treasury in its YourMoney pension data, as of March 31, 2026. It is the pension-basis figure and may not include overtime, accrued leave, stipends, or other pay. The link between this officer and this pension record is a records-based match at high confidence (exact name and exact employing agency), not a certified identity. If it is wrong, we will remove it: corrections.
Questions and answers
What is a summary of Mark Kieffer III's major discipline record?
Kieffer III has 2 sustained major discipline records from Trenton PD, spanning 2023 to 2024. The records include a suspension. Sustained charges across the records include: Conduct Unbecoming a public employee; Conduct Unbecoming of a Public Employee.
What is Mark Kieffer III's major discipline record at Trenton Police Department?
Mark Kieffer III has 2 major discipline records at Trenton Police Department in the New Jersey Attorney General's 2020-2025 releases, from 2023, 2024. These are final, adjudicated actions, not allegations.
What is Mark Kieffer III's base salary on record?
Mark Kieffer III's reported base salary is $95,110, from New Jersey Treasury YourMoney data, matched to this officer at high confidence. Mark Kieffer III has 9 years, 4 months of reported service.
How large is Trenton Police Department, the department Mark Kieffer III worked for?
Trenton Police Department reported 239 sworn officers to the FBI for 2025. This is department-level context from the FBI's Law Enforcement Employees census, not a statement about Mark Kieffer III individually.
Sources
[1]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 1155. Snapshot retrieved 2026-07-03. ↩
[2]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 1770. Snapshot retrieved 2026-07-03. ↩
[3]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 1155. Snapshot retrieved 2026-07-03. The timeline counts rows 1155, 1770. ↩
[4]YourMoney Active Pension Members (PFRS/SPRS subset). New Jersey Department of the Treasury. Row 229549, snapshot as of March 31, 2026. Derived from the public YourMoney Active Pension Members dataset, https://www.yourmoney.nj.gov/. ↩
[5]FBI Law Enforcement Employees (LEE), New Jersey subset. Federal Bureau of Investigation. Row 8379. Derived from the public Law Enforcement Employees (LEE) / Police Employee Data dataset (1960-2025), https://cde.ucr.cjis.gov/. ↩