He is actively participating in social movements.

He is passionately engaged in extracurricular activities.

Every weekend, I do volunteer work at a local shelter.

A municipal police was established in my town.

He was terrified of living in a police state.

He was caught by the secret police.

Police dogs are very effective in tracking criminals.

I went to the police station yesterday.

The head of the police station explained the details of the incident to the press.

We camped in a densely wooded area.