police
The Italian word for 'police' is 'polizia'. Just as in English, 'polizia' is a singular noun in Italian. It's used to refer to the group of people whose job is to uphold and enforce the law, and prevent crime. It can be used in most of the same phrases where you'd use 'police' in English. Example: 'La polizia è qui' means 'The police are here'.
The police are looking for the missing man.
This sentence is used when the police are specifically looking for an individual who has gone missing. In English, this scenario is commonly explained using the verb 'looking for'.
My car was towed by the police.
This phrase expresses that the car of the speaker was towed by the police. It is commonly used to describe a situation where illegal parking or moving violations resulted in the police taking action.
We have to report the theft to the police.
This sentence means that the speaker and someone else must report an instance of theft to the police. It is generally used when somebody has taken something belonging to the speaker or someone else without permission and the incident needs to be reported to the authorities.