According to the us supreme court, it is the duty of law enforcement to define obscenity.

The statement is "False".

it is not the duty of law enforcement to define obscenity. An obscenity is any expression or act that emphatically annoys the profound morality of the time. It is gotten from the Latin obscaena (offstage) a related of the Old Greek root skene, in light of the fact that some conceivably hostile substance, for example, murder or sex, was portrayed offstage in established dramatization.