Typically, when there’s evidence discovered on a crime scene, it must go through proper policy and procedure. All of this begins at the crime scene when the evidence is being disposed of. Furthermore, the evidence needs to establish a chain of custody so that it can be used in trial to convict the accused. It all comes down to maintaining a proper chain of custody because in the end, it will either make you or break you. When chain of custody is done correctly, it is proof to the court that the evidence presented in front of them is the same evidence collected from the crime scene. However, policy will in fact impact everyone involved in the case. If somewhere during the chain of custody process is done incorrectly, the suspect will surely get away with his crime because the evidence was inadmissible in court. Basically when there is a weapon, the first person to handle it would initial it. Then the supervisor would then make sure the storage is safe and secure. To complete the chain of custody, requirements have to be met. Who came into contact with it, why were the evidence being handle, and if any changes were made to the evidence or date during the time it was being handled.
Criminal investigation is the process of discovering, collecting, preparing, identifying, and presenting evidence to determine what happened and who is responsible The preliminary investigation includes all the activities that an officer performs when he/she responds to a crime. The officer is responsible for responding immediately and rendering aid to those that are injured. While the officer responds and renders aid, it is important for he/she to note important facts by either writing it down, contacting dispatch, or taking mental note. These facts include the position of the victim or injured, recording spontaneous statements, paying attention to unusual actions or activities, and an assessment of the crime scene. I know it is out of order, but I believe the second and most crucial step is to secure the crime scene. Doing this, helpws protect the evidence and prevent cross contamination. The crime scene is the physical area where a crime is thought to of occurred and where the evidence of the said crime is thought to reside. Vital evidence to a case, can be found at a crime scene. This includes, fingerprints, DNA, foot prints, bullets, bullet casings, fibers, etc. It is important to determine if a crime has in fact been committed, if so, the officer must initiate enforcement action, by arresting or pursuing the offender or dispatching apprehension information. The officer is
The discovery of a dead body become a homicide case when during the preliminary investigation of police, it appears that there is a foul play involve in the nature of how the victim died. Homicide case is handled by homicide investigator. During homicide investigation, one of the important and primary part towards giving a victim justice he or she deserved is to find out the time he or she was killed. Because without such piece of information the case will go to nowhere. Therefore, in this paper I am going to discuss the importance of determining time of death in a homicide case and the method used in determining the time of death of a homicide victim.
This project originated from Europe in the 16th-century. Medics in the army and universities gathered information on the cause of death. Ambroise Parè, a French army surgeon, studied the effects of death on internal organs. The project has been used in the past and present by crime scene investigators or detectives. It is still used to trace DNA of any suspects in crime scenes. Because this method is so accurate, most detectives use this method of tracking DNA. I 'm going to tell you how the process of this method is going to be done. First, the detectives start by finding finger prints or blood samples. Once they collect samples they hand it over to a forensic scientist to analyze them. They start by measuring and observing blood spatters.
“An investigator starts research in a new field with faith, a foggy idea, and a few wild experiments” (Cram). This quote was said by Donald Cram in discussing how an investigator should start an investigation. The job of CSI consists of collecting and analyzing evidence. At a crime scene CSI typically collect evidence, take pictures, make sketches and a variety of other tasks. CSI is a fascinating career choice because one gets to travel, perform a variety of tasks, and gets to investigate and help society by investigating criminals.
What decision-making methods were utilized in the case? According to Charles E. Lindblom, there are two types of decision-making methods: the root method and the branch method. The root method, which he also calls he rational-comprehensive method, is an approach to decision-making where an individual chooses an objective and ranks all the relevant values in obtaining the objective. The person making the decision must “formulate many possible alternatives to achieve the stated objective.” This type of method is heavily based upon theory. In addition, the second type of method Linblom talked about is the branch method, which he also called the successive limited comparisons method. This method involves the decision-maker selecting “among the
SLS is critically dependent on uninterrupted services. Any loss of network resources for an extended period of time could have a severe impact on SLS. This plan will specifically address failures that may occur due to a tornado.
In the criminal justice system a police officer or crime scene investigator cannot legally search a person or property without a search warrant. There have been ongoing debates and revisions on the legal requirements and circumstances under which it is necessary to obtain a search and seizure warrant before crime scene processing. According to the Fourth Amendment search and seizure requirements, a warrant is required any time a reasonable expectation of privacy exists. Therefore, in an effort to protect the right of the people and their belongings against unreasonable search and seizures and up hold the law officials accountable for fair treatment and processing procedures. When a crime scene investigator comes upon the scene, they must have a search warrant. Without a warrant, all of the information gathered in order to process the crime could be greatly compromised. Now a search warrant is defined as a legal document authorizing law enforcement official to enter and search a premises or person (legal-dictionary n.d.). Therefore, when a crime scene investigator come on a scene to process that scene they most have a search warrant in order to gather all of the information needed to process the crime.
Forensic Science Technicians collect, identify, classify, and analyze physical information related to criminal investigations. They perform tests on weapons or substances, such as fiber, hair, and tissue to determine significance to investigation. They can testify as expert witnesses on evidence or crime laboratory techniques. They may also serve as specialists in area of expertise, such as ballistics, fingerprinting, handwriting, or biochemistry. Forensic Technicians are responsible for many tasks, these include:
The next step is to collect the evidence found. The time for evidence collection will be written down. When the evidence is ready to be collected each item will go into its own separate bag. Each bag will be sealed shut and the seal has to be signed. Next each bag will be labeled with the date and time of collection, what the item is, where it was found, the name and identification number of the person who bagged it, what type of crime scene it was found at, the incident number, and evidence number. (Tina Young, 2011)
Candidate Lippmann had a thorough, yet succinct, brief, but omitted the Command and Signal part of the 5-paragraph order. Candidate Lippmann established an initial plan by outlining and then delegated specific tasks for his fire team prior to the point of execution, to include giving any security direction. Experiencing several setbacks, Candidate Lippmann was able to quickly make modifications to the initial plan in a timely manner. Through issuing clear commands, his team was able to adapt and function together as a single small unit. Candidate Lippmann was calm during the execution of the problem. Candidate Lippmann was clearly in-charge of the situation and the team remained engaged toward mission accomplishment, despite setbacks experienced.
Forensic evidence is anything presented in court to support or refute a theory of statement. In a healthcare setting, common types of evidence include clothing, body fluids, bloodstains, and bullets. In the course of a physical exam, you're also likely to find other evidence such as hairs and fibers, for instance, as well as pieces of materials such as paint, glass, or wood.
Ensure that the current production activities are not hampered, while the project activities are carried out.
As a digital forensic investigator, I was assigned to a case where my expertise where needed. My role in the investigation was to search the suspects digital evidence to help find more helpful information and advance the case. Overall my job as a digital forensic investigator was to recover and analyse the digital evidence so that it could be used in the criminal prosecution.
The following section will consider advantages and limitation of the first two mentioned types of digital forensics: Traditional (dead) and Live computer forensics.