inform the police

His father took him to hospital and informed the police.

She told officials at her school about the attack the next day, and they informed the police, he said.

I've got a friend who's going to inform the police about him.

Either you or I must inform the police of the fact.

Things which he could inform the police about if they didn't play ball.

That's why we'd better not inform the police too soon.

Please inform the local police if you see this young woman.

Anyway, neither of them would inform the police about him.

"Then I suppose you have not informed the police, either."

They informed the police who took no action and even refused to give their names.