He was sprayed with tear gas during the demonstration.

I will abstain from attending this meeting.

We are participating in this project by delegation.

Please remember to bring your admission ticket.

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.