This is the 1430th most frequent Catalan word.
policials
"Policials" means "related to police" or "police-related" in English.
Here 'policials' is used as an adjective to categorize the reports as related to the police.
S'han descobert informes policials recents.
Recent police reports have been uncovered.
Here 'policials' is an adjective describing the genre of the series.
Les sèries policials són molt populars.
Police series are very popular.
In this sentence, 'policials' modifies 'agents,' referring to their association with the police.