This is the 287th most frequent Russian word.
полиции
The Russian word "полиции" translates to "police" in English.
In this sentence, 'полиции' is the genitive plural form, showing possession or association, implying 'of the police'.
Сотрудники полиции прибыли на место происшествия.
The police officers arrived at the scene of the incident.
'Полиции' here is in the prepositional case used with 'в' to indicate the field or place of work.
Он работает в полиции уже десять лет.
He has been working in the police for ten years now.
Here, 'полиции' is used as the genitive case of 'полиция' (police) to indicate the location or institution associated with the action.