Department profile · Middlesex County
South River Police Department
Reported as: South River 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
South River Police Department is a municipal police agency in Middlesex County. It reported 11 sworn officers and 14 internal affairs investigations in 2025. Its rate of 127.3 investigations per 100 officers was above the 125.6 median for municipal police. Of the 14 investigations, 3 reported sustained complaints in 2025. The leading allegations were demeanor and theft.
Three major discipline records appear in the 2020-2025 releases, in 2022, 2023 and 2025, none of them terminations. The site's report card gave the department a grade of F, placing it at the 90th percentile of its peer group of 361 agencies in the 1-14 officer band. A larger number of internal affairs cases can point to more misconduct or to a more complete reporting culture.
Written by this site strictly from the figures on this page; every number is cited below.
Sworn officers, 2025
11[1]
IA investigations, 2025
14[1]
Incidents, 2025
11[1]
Major discipline records
3
All years, 2020-2025
Internal affairs investigations by year
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| 5 | 19 | 30 | 19 | 14 |
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
| Demeanor | 4 |
|---|---|
| Theft | 3 |
| Differential Treatment | 3 |
| Conduct Unbecoming/Discredit To The Agency | 1 |
| Excessive Force | 1 |
| Attendance Issues | 1 |
| BWC/MVR Violation | 1 |
Internal disposition
| Unfounded | 7 |
|---|---|
| Not Sustained | 4 |
| Sustained | 3 |
Against peers, 2025
| South River PD | 127.3 |
|---|---|
| County median, municipal police (25) | 125.0 |
| 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 |
|---|---|---|---|---|
| 2025 | James Del Grosso | Patrol Officer | Separated while IA pending | [8] |
| 2023 | Joseph Guiamano | Officer | Suspended 20 days | [9] |
| 2022 | John Mckenna | Lieutenant | Suspended 20 days | [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 South River Police Department report in 2025?
- South River Police Department reported 14 internal affairs investigations in 2025, according to New Jersey Attorney General data. It reported 11 sworn officers that year.
- How many major discipline records does South River Police Department have?
- South River Police Department has 3 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 2327. Snapshot retrieved 2026-06-09. ↩
- [2]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 292. Snapshot retrieved 2026-06-09. ↩
- [3]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1310. Snapshot retrieved 2026-06-09. ↩
- [4]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 1815. Snapshot retrieved 2026-06-09. ↩
- [5]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 796. Snapshot retrieved 2026-06-09. ↩
- [6]New Jersey Internal Affairs Agency Totals, 2021-2025. New Jersey Office of the Attorney General. Sheet "Sheet1", row 2327. 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 South River 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 454. Snapshot retrieved 2026-07-03. ↩
- [9]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 1793. Snapshot retrieved 2026-07-03. ↩
- [10]New Jersey Major Discipline Data, 2020-2025. New Jersey Office of the Attorney General. Sheet "Major Discipline Data", row 2248. Snapshot retrieved 2026-07-03. ↩