That is the definition and the answer is.... "police", there is black humour, impossible to find, moreover the definitions are often translated approximately and therefore the answer is not found
I suppose you're talking about a word-for-word definition of the game... The answer to the definition you give is exact, in fact you have to understand polite, an adjective whose synonyms are civilized, educated, polite, refined . http://www.linternaute.com/dictionnaire/fr/definition/police-1/