Department profile · Morris County
Mendham Borough Police Department
Reported as: Mendham Boro 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
Mendham Borough Police Department is a municipal police agency in Morris County. It reported 1 sworn officer in 2025 and opened 1 internal affairs investigation that year. Its rate of 100 investigations per 100 officers was below the 125.6 median for municipal police departments. The single investigation detailed for 2025 did not report a sustained complaint. The recorded allegation was demeanor.
No major discipline records appear for the department in the 2020 through 2025 releases, and the absence of records is not a finding. The site grades Mendham Borough a D, which places it in the 67th 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
1[1]
IA investigations, 2025
1[1]
Incidents, 2025
1[1]
Major discipline records
0
All years, 2020-2025
Internal affairs investigations by year
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 1 |
Complaint mix, 2025
Most serious allegation per investigation, as categorized by the reporting agency. Allegations are not findings: of 1 investigations, 0 reported one or more sustained complaints. Officer-level rows list 1 officers involved.[7]
Most serious allegation
| Demeanor | 1 |
|---|
Internal disposition
| Exonerated | 1 |
|---|
Against peers, 2025
| Mendham Boro PD | 100.0 |
|---|---|
| County median, municipal police (35) | 116.7 |
| 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
No major discipline records appear for this agency in the 2020-2025 releases. Absence of records is not a finding; see the methodology for what this data does and does not cover.
Questions and answers
- How many internal affairs investigations did Mendham Borough Police Department report in 2025?
- Mendham Borough Police Department reported 1 internal affairs investigations in 2025, according to New Jersey Attorney General data. It reported 1 sworn officers that year.
- How many major discipline records does Mendham Borough Police Department have?
- No major discipline records appear for Mendham Borough Police Department in the Attorney General's 2020-2025 releases. Absence of records is not a finding; discipline is listed only after all appeals conclude.
Sources
- [1]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2390. Snapshot retrieved 2026-06-09. ↩
- [2]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 356. Snapshot retrieved 2026-06-09. ↩
- [3]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1374. Snapshot retrieved 2026-06-09. ↩
- [4]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1880. Snapshot retrieved 2026-06-09. ↩
- [5]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 860. Snapshot retrieved 2026-06-09. ↩
- [6]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2390. Snapshot retrieved 2026-06-09. ↩
- [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 Mendham Boro PD row for 2025; row 1 is the header. ↩