Complaint #202105747,
September 21, 2021

Officer: Mcallister, Dennis
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Refusal to provide name
CCRB Conclusion: Substantiated (Command Discipline A)
Officer: Mcallister, Dennis
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Failure to provide RTKA card
CCRB Conclusion: Substantiated (Command Discipline A)
Officer: Carton, Brian
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Refusal to provide name
CCRB Conclusion: Substantiated (Command Discipline A)
Officer: Carton, Brian
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Failure to provide RTKA card
CCRB Conclusion: Substantiated (Command Discipline A)
Officer: Mcallister, Dennis
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Threat of summons
CCRB Conclusion: Substantiated (Command Discipline B)
Officer: Quarshie, Isaac
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Failure to provide RTKA card
CCRB Conclusion: Unsubstantiated
Officer: Quarshie, Isaac
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Refusal to provide name
CCRB Conclusion: Unsubstantiated
Officer: Melendez, Sandra
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Failure to provide RTKA card
CCRB Conclusion: Unsubstantiated
Officer: Melendez, Sandra
Complainant: White Male, 30-34
Allegation: Abuse of Authority: Refusal to provide name
CCRB Conclusion: Unsubstantiated
Officer Complainant Allegation CCRB Conclusion
Mcallister, Dennis White Male, 30-34 Abuse of Authority: Refusal to provide name Substantiated (Command Discipline A)
Mcallister, Dennis White Male, 30-34 Abuse of Authority: Failure to provide RTKA card Substantiated (Command Discipline A)
Carton, Brian White Male, 30-34 Abuse of Authority: Refusal to provide name Substantiated (Command Discipline A)
Carton, Brian White Male, 30-34 Abuse of Authority: Failure to provide RTKA card Substantiated (Command Discipline A)
Mcallister, Dennis White Male, 30-34 Abuse of Authority: Threat of summons Substantiated (Command Discipline B)
Quarshie, Isaac White Male, 30-34 Abuse of Authority: Failure to provide RTKA card Unsubstantiated
Quarshie, Isaac White Male, 30-34 Abuse of Authority: Refusal to provide name Unsubstantiated
Melendez, Sandra White Male, 30-34 Abuse of Authority: Failure to provide RTKA card Unsubstantiated
Melendez, Sandra White Male, 30-34 Abuse of Authority: Refusal to provide name Unsubstantiated

Conclusion Meanings:

'Substantiated': The misconduct occurred and it violated the rules. The NYPD has discretion over what, if any, discipline is imposed.
'Unsubstantiated': or 'Unable to Determine' - The alleged conduct was investigated but could not determine both that the conduct occurred and that it broke the rules.

Further details on conclusions.


Penalty

Mcallister, Dennis
Closed: MOS Retired, May 1, 2024
APU MOS Retired

Summary

On September 21, 2021, at approximately 3:28 a.m., [redacted] was verbally threatened by an unknown civilian while walking his dog in the vicinity of [redacted] in Brooklyn. [redacted] called 911 to report the incident. At approximately 4:04 a.m., Police Officers Dennis Mcallister and Brian Carton from the 79th Precinct arrived. [redacted] and the officers got into an argument after they declined to investigate further or create a police report. PO Mcallister and PO Carton failed to provide [redacted] with a business card (Allegations A-B: Abuse of Authority, [redacted]). PO Mcallister and PO Carton refused to provide their names to [redacted] (Allegations C-D: Abuse of Authority, [redacted]). PO Mcallister threatened [redacted] with a summons (Allegations E: Abuse of Authority, [redacted]). After the interaction with PO Mcallister and PO Carton, [redacted] called the 79th Precinct two more times and also called the 88th Precinct. At 6:38 a.m., PO Sandra Melendez and PO Isaac Quarshie of the 79th Precinct arrived at [redacted] in Brooklyn. PO Melendez and PO Quarshie allegedly failed to provide their business cards to [redacted] (Allegations F-G: Abuse of Authority, [redacted]). PO Melendez and PO Quarshie allegedly refused to provide their names to [redacted] (Allegations H-I: Abuse of Authority, [redacted]). Read report for details.


Details

Incident: September 21, 2021
Received: September 24, 2021
Closed: January 19, 2023
Last Updated: October 2, 2025

Reason for contact: C/V requested investigation of crime
Location: Street/highway
In NYPD 79th Precinct Brooklyn
Outcome: No arrest made or summons issued

Body-Worn Camera evidence collected
Video evidence collected