When police officers are arresting someone for a felony, the courts have given them a little more leeway. The police may use all the force that is necessary to overcome resistance, even if that means killing the person they are trying to arrest. However, if it is proved that an officer used more force than was necessary, the officer can be held criminally and civilly liable. In Tennessee v. Garner, 471 U.S. 1, 105 S. Ct. 1694, 85 L. Ed. 2d 1 (1985), the Supreme Court ruled that it is a violation of the Fourth Amendment for police officers to use deadly force to stop fleeing felony suspects who are nonviolent and unarmed. The decision, with an opinion written by Justice byron r. white, said, in part, "We conclude that such force may not be used unless it is necessary to prevent the escape and the officer has probable cause to believe that the suspect poses a significant threat of death or serious physical injury to the officer or others."