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Department profile · Somerset County

Manville Police Department

Reported as: Manville PDMunicipal police

Jurisdiction context

Not a civil service jurisdiction

This department is not among the NJCSC Appendix A jurisdictions, so major discipline here follows a different statutory track (generally N.J.S.A. 40A:14), with appeals that usually go to the Superior Court rather than the Civil Service Commission.

See the context on non-civil-service departments.

Reflects the NJCSC Appendix A roster as of 2026-07-04. Context only, not legal advice.

In brief

Manville Police Department is a municipal police agency in Somerset County. The department reported 10 sworn officers in 2025 and opened 14 internal affairs investigations that year. Its rate of 140 investigations per 100 officers was above the 125.6 median for municipal police departments. Of the 14 investigations detailed for 2025, 3 reported sustained complaints. The most common allegation was differential treatment.

Three major discipline records appear for the department across the 2020 through 2025 releases, one of which was a termination. The site grades Manville an F, which places it in the 88th percentile of its peer group of 361 departments with 1 to 14 officers. A higher volume of internal affairs activity can reflect more misconduct or a stronger reporting culture.

Written by this site strictly from the figures on this page; every number is cited below.

Sworn officers, 2025

10[1]

IA investigations, 2025

14[1]

Incidents, 2025

11[1]

Major discipline records

3

All years, 2020-2025

Internal affairs investigations by year

820211020223202392024142025
Internal affairs investigations reported by Manville Police Department, by year
Internal affairs investigations reported by Manville Police Department, by year
20212022202320242025
8103914

As reported to the Attorney General.[2][3][4][5][6]

Complaint mix, 2025

Most serious allegation per investigation, as categorized by the reporting agency. Allegations are not findings: of 14 investigations, 3 reported one or more sustained complaints. Officer-level rows list 14 officers involved.[7]

Most serious allegation

Most serious allegations reported by Manville PD, 2025
Most serious allegations reported by Manville PD, 2025
Differential Treatment5
Improper Arrest2
Assault1
not provided1
Other Departmental Rule Violation1
Sexual Assault/Criminal Sexual Violation1
Neglect of Duty1
Conduct Unbecoming/Discredit To The Agency1
AdministrativeConduct / dutyRights / integrityViolence / criminal

Internal disposition

Internal dispositions reported by Manville PD, 2025
Internal dispositions reported by Manville PD, 2025
Exonerated6
Not Sustained3
Administratively Closed3
Sustained2

Against peers, 2025

AnalysisComputed by this site from reported totals; not an official statistic.
MANVILLE PD140.0COUNTY MEDIAN, MUNICIPAL POLICE (18)141.7NJ MEDIAN, MUNICIPAL POLICE (447)125.6
Internal affairs investigations per 100 officers, 2025 (investigations per 100 sworn officers)
Internal affairs investigations per 100 officers, 2025 (investigations per 100 sworn officers)
Manville PD140.0
County median, municipal police (18)141.7
NJ median, municipal police (447)125.6

Investigations per 100 sworn officers, using the officer counts each agency reported for 2025. A higher number is ambiguous on its own: it can reflect more misconduct, or a stronger internal reporting culture. Medians are computed within the same agency type only.

Major discipline records

Major discipline records reported by Manville Police Department, 2020-2025
YearOfficerRankSanction as reportedSrc
2025Thomas HerbstChiefTerminatedSuspended 612 days[8]
2025Paul MeixnerLieutenantSuspended 6 daysSeparated while IA pending[9]
2023Thomas HerbstChiefSuspended (days not reported)[10]

Every name links to the officer's record page with the agency's full synopsis and citation.

Questions and answers

How many internal affairs investigations did Manville Police Department report in 2025?
Manville Police Department reported 14 internal affairs investigations in 2025, according to New Jersey Attorney General data. It reported 10 sworn officers that year.
How many major discipline records does Manville Police Department have?
Manville Police Department has 3 major discipline records in the Attorney General's 2020-2025 releases, of which 1 were terminations. These are final, adjudicated actions, not allegations.

Sources

  1. [1]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2482. Snapshot retrieved 2026-06-09.
  2. [2]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 442. Snapshot retrieved 2026-06-09.
  3. [3]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1463. Snapshot retrieved 2026-06-09.
  4. [4]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1971. Snapshot retrieved 2026-06-09.
  5. [5]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 947. Snapshot retrieved 2026-06-09.
  6. [6]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2482. Snapshot retrieved 2026-06-09.
  7. [7]New Jersey Internal Affairs Investigations, 2024-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1. Snapshot retrieved 2026-06-09. Aggregated from every Manville PD row for 2025; row 1 is the header.
  8. [8]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 523. Snapshot retrieved 2026-07-03.
  9. [9]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 524. Snapshot retrieved 2026-07-03.
  10. [10]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 1872. Snapshot retrieved 2026-07-03.