Complaint #202405855,
June 12, 2024

Officer: Matias, Mark
Complainant: Male, 30-34
Allegation: Force: Physical force
CCRB Conclusion: Within NYPD Guidelines
Officer: Dinsmore, Peter
Complainant: Male, 30-34
Allegation: Discourtesy: Word
CCRB Conclusion: Unable to Determine
Officer: Matias, Mark
Complainant: Male, 30-34
Allegation: Abuse of Authority: Improper use of body-worn camera
CCRB Conclusion: Substantiated (Command Discipline A)
Officer: Matias, Mark
Complainant: Male, 30-34
Allegation: Discourtesy: Word
CCRB Conclusion: Unfounded
Officer: Dinsmore, Peter
Complainant: Male, 30-34
Allegation: Discourtesy: Action
CCRB Conclusion: Unable to Determine
Officer: Dinsmore, Peter
Complainant: Male, 30-34
Allegation: Abuse of Authority: Improper use of body-worn camera
CCRB Conclusion: Substantiated (Command Discipline A)
Officer Complainant Allegation CCRB Conclusion
Matias, Mark Male, 30-34 Force: Physical force Within NYPD Guidelines
Dinsmore, Peter Male, 30-34 Discourtesy: Word Unable to Determine
Matias, Mark Male, 30-34 Abuse of Authority: Improper use of body-worn camera Substantiated (Command Discipline A)
Matias, Mark Male, 30-34 Discourtesy: Word Unfounded
Dinsmore, Peter Male, 30-34 Discourtesy: Action Unable to Determine
Dinsmore, Peter Male, 30-34 Abuse of Authority: Improper use of body-worn camera Substantiated (Command Discipline A)

Conclusion Meanings:

'Substantiated': The misconduct occurred and it violated the rules. The NYPD has discretion over what, if any, discipline is imposed.
'Unable to Determine': The alleged conduct was investigated but could not determine both that the conduct occurred and that it broke the rules.
'Unfounded': Evidence suggests that the event or alleged conduct did not occur.
'Within NYPD Guidelines': The conduct occurred but did not violate the NYPD's own rules, which often give officers significant discretion.

Further details on conclusions.


Penalties

Dinsmore, Peter
Command Discipline - A

Matias, Mark
Command Discipline - A

Details

Incident: June 12, 2024
Closed: October 9, 2025
Last Updated: December 21, 2025

Reason for contact: Moving violation
Location: Street/highway
In NYPD 40th Precinct Bronx
Outcome: No arrest made or summons issued

Body-Worn Camera evidence collected