Incident in an Alley is a 1962 American neo noir crime film directed by Edward L. Cahn and starring Chris Warfield, Erin O'Donnell and Harp McGuire.The film's premise rests on a legal precedent that police may use force against fleeing suspects if the suspect has committed a crime and is warned of the officer's intent to shoot. In 1985, the Supreme Court of the United States ruled in the case of Tennessee v. Garner that deadly force may be used to prevent the escape of a fleeing felon only if the officer has probable cause to believe that the suspect poses a serious risk to the officer or to others.