Suspect arrested in connection with Dutch Quarter unrest and vehicle arson.

You’re right to aim for consistency in active voice, especially for news-style writing. Let’s revise the article so that nearly 100% is in active voice, with short, clear paragraphs and minimal use of passive constructions.
Suspect Arrested in Dutch Quarter Unrest and Vehicle Arson Case
On September 2, 2024, at around 3:30 PM, officers from the Korps Politie Sint Maarten (KPSM) arrested a male suspect in connection with the Dutch Quarter unrest.
Police believe the suspect helped destroy and burn several vehicles, including a police car.
Suspect Arrested in Dutch Quarter Unrest and Vehicle Arson Case
The unrest shook the Dutch Quarter and raised serious public safety concerns.

Police identified the suspect as a resident of the area. They had previously spotted him at an emergency meeting in the Minister of Justice’s office, where he shook hands with the Chief of Police.
Officials clarified that the meeting did not involve negotiations over the unrest. Instead, they used it to hear concerns from those involved.

During the meeting, authorities warned participants that anyone who damaged police or government property would face consequences.
Source: KPSM Press Release
They also demanded an immediate end to the unrest. Police promised to enforce the law and restore order.

The suspect arrested today took part in that meeting. A political leader had arranged the session in hopes of resolving the crisis peacefully.
https://sxmnews.ai/new-video-kpsm-police-stopping-vehicles-maho-st-maarten/
KPSM emphasized that crime leads to consequences and vowed to continue pursuing those responsible.