Department profile · Morris County
Mount Arlington Borough Police Department
Reported as: Mount Arlington 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
Mount Arlington Borough Police Department is a municipal police agency in Morris County. In 2025 it reported 4 sworn officers and 5 internal affairs investigations. Its rate of 125 investigations per 100 officers was just below the 125.6 median for municipal police. None of the 5 investigations detailed for 2025 reported a sustained complaint. The top allegation was Other Departmental Rule Violation.
One major discipline record appears in the 2020-2025 releases, with no terminations. The report card gave the department a B, the 33rd percentile among 361 peers in the 1 to 14 officer band. 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
4[1]
IA investigations, 2025
5[1]
Incidents, 2025
5[1]
Major discipline records
1
All years, 2020-2025
Internal affairs investigations by year
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 5 | 3 | 5 | 5 | 5 |
Complaint mix, 2025
Most serious allegation per investigation, as categorized by the reporting agency. Allegations are not findings: of 5 investigations, 0 reported one or more sustained complaints. Officer-level rows list 5 officers involved.[7]
Most serious allegation
| Other Departmental Rule Violation | 3 |
|---|---|
| Demeanor | 1 |
| Vehicular Pursuit Policy Violation | 1 |
Internal disposition
| Exonerated | 5 |
|---|
Against peers, 2025
| Mount Arlington Boro PD | 125.0 |
|---|---|
| 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
| Year | Officer | Rank | Sanction as reported | Src |
|---|---|---|---|---|
| 2023 | Christopher Coupe | Sergeant | Other sanction | [8] |
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 Mount Arlington Borough Police Department report in 2025?
- Mount Arlington Borough Police Department reported 5 internal affairs investigations in 2025, according to New Jersey Attorney General data. It reported 4 sworn officers that year.
- How many major discipline records does Mount Arlington Borough Police Department have?
- Mount Arlington Borough Police Department has 1 major discipline records in the Attorney General's 2020-2025 releases, of which 0 were terminations. These are final, adjudicated actions, not allegations.
Sources
- [1]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2399. Snapshot retrieved 2026-06-09. ↩
- [2]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 366. Snapshot retrieved 2026-06-09. ↩
- [3]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1383. Snapshot retrieved 2026-06-09. ↩
- [4]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1888. Snapshot retrieved 2026-06-09. ↩
- [5]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 869. Snapshot retrieved 2026-06-09. ↩
- [6]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2399. 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 Mount Arlington Boro PD row for 2025; row 1 is the header. ↩
- [8]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 1831. Snapshot retrieved 2026-07-03. ↩