PROBLEMS IN THE COLLECTION AND PRESERVATION OF BLOOD EVIDENCE IN THE CRIME SCENE FROM THE VIEWPOINTS OF POLICE INVESTIGATORS; IMPLICATION TO CRIMINALDETECTION AND INVESTAGATION

Most investigators begin with a careful and objective observation that is afterward assembled, collated, and match against applicable law. If there is reason to assume that a crime has indeed been committed, further investigation are undertaken using scientific methods and techniques. Police crime investigation is one of the crucial and delicate aspects of law enforcement practice. It is a process so significant that people involved in it have become recipients of many reactions from the people they are serving-the public. Crime detection is defined as the discovery, identification, and analysis of criminal evidence in law enforcement. The obligation of law enforcement agencies is to effectively detect crimes, apprehend the criminal, and provide evidence that will somehow convince judges and juries that the latter is indeed guilty beyond reasonable doubt. To achieve these objectives, various methods are used like reconstruction of the crime, collection of physical clues, and interrogation or suspects and witnesses. The methods of detection used are dictated by the nature of the crime committed and the procedures allowed by the legal system.