Williams v. Maurer

Reasonable juror could find that warrantless entry into home was not justified by emergency aid exception; anonymous call does not provide objectively reasonable basis; court rejects series of factual arguments by defendant; fact that person who answered door opened it only slightly and used her knee to prevent police from opening it further did not provide cause to enter: “exercising her Fourth Amendment rights can hardly be ground for police to circumvent the core right protected by the Amendment”; absent exigent circumstances warrantless entry into home violated clearly established law; forcibly pushing open door against plaintiff’s knee causing bleeding and permanent scar to enter home without warrant violated clearly established right to be free from excessive force.