A law that targets loud residential areas, containing vague clauses that give the police a wide-ranging power to do as they wish when a "situation" presents itself.
For example, a Raleigh (North Carolina) City ordinance bans
"any . . . activity resulting in conditions that annoy,
injure or endanger the safety, health, comfort or repose
of . . . neighboring residents"
--Raleigh City Code 13.3006
Laws such as these, which target college residences and partygoers, have questionable legal precedent but often are not challenged in Court because the group being targeted does not have the resources to fight a legal battle.