This is a fairly simple case of rape. About four months ago, Miss Chen returned to her apartment in the middle of the night when she was attacked and raped by an ambushed gangster. During the whole process of rape, Miss Chen was blindfolded and never saw the face of the rapist. But she remembered the criminal’s voice clearly. One day, more than three months later, Miss Chen happened to hear the voice again in a shop. She immediately called the security guard to hold the man and informed the police. Police found that the man had a record of sexual harassment and arrested him.