Then they would want to notify the dispatcher of the situation (http://www.rcmp-learning.org/copp/encopp/s_crime.htm). Another very important priority for the police when they arrive at the crime scene is to give emergency aid if necessary, to all victims, witnesses, or suspects. Officers need to call for medical help immediately but they still need to give the appropriate aid until medics arrive. Sustaining life and minimizing injuries is a top priority of all officers. They are never to assume a person is dead unless the body is already in rigor mortis, or the body is decomposing, or the trunk or head is severed.
Once the evidence is found, recorded and packaged, it must be sent to a crime lab for further processing. Each item when shipped should be recorded, logged and accounted for from person to person so when used in a trial, the evidence has been accounted for from beginning to end. The final thing investigators must make sure is that all evidence was seized properly and with probable cause. This is the main reason why in so many court cases evidence is thrown out, improper searches and seizures. If any investigator is in doubt on whether or not a place or person can be search, it is always best to obtain a warrant for that such reason.
Thus, in this case blood stains would be the one of the potential evidence. The precipitin test might be applied to bloodstains in a numerous ways. It conduct... ... middle of paper ... ...be enhanced. As seen from the video one of the perpetrators was wearing a dark short sleeved shirt and appears to have a very wide watch strap on his left wrist. When after find out the DNA and fingerprint results CCTV camera photographs will be useful to identify the real criminal of the robbery.1.
Another way to find the story is with voids. Voids are areas where an object blocked the path of the blood (Forensic). They can tell the forensic analyst whether or not anything was moved or taken from the crime scene. The motive for the crime can usually be determined once the voids are found. With all of that being said, having forensic scientists study the blood spatter found at a crime scene can succor detectives in finding the person responsible.
When someone is convicted or acquitted wrongly it has an adverse effect on the entire criminal justice system. Evidence can range from body fluids, to weapons, to witnesses and DNA. Understanding and implementing the proper logistics of crime evidence and the proper use of forensic technology is the key. Evidence can not only establish the facts of an offense and identify the offender; it may even lead to a conviction. A Crime Scene Investigator must first approach the crime scene as if it is their only opportunity to protect and retrieve physical evidence.
The first responder has to secure the area, assist any victim if any, arrest the suspects if any, detain all witnesses, protect the crime scene and provide information about all the movements or alteration made to the crime scene investigators or their supervisor. The crime scene should be secured by an officer designated to be the security officer. His or her duty is to be responsible for preventing unauthorized individual from entering the crime scene and to keep a record of all the personnel that enters or exits the crime scene. In addition to this there should be some kind of barrier such as rope, or yellow tape to let people know that an investiga... ... middle of paper ... ... not unusual for CSI agent or police officer to work overtime. This show may have a lot of the fantasy of Hollywood about CSI agents, but they show some truth.
Collecting evidence from a crime scene is a crucial aspect of solving crimes. Before evidence can be seized, there must first be a court order approving the search of the crime scene and the seizure of the evidence found at the scene. Standard protocol for officers is for them to always use latex gloves, avoid plastic bags, double wrap small objects, package each object separately, and to collect as much evidence as possible. It is better to have too much evidence than to not have enough. There are countless amounts of evidence that can be found at a crime scene.
First responders play a crucial role in the establishment of a crime scene. Upon arriving at the scene, the first responders have checked for living victims and have rendered aid. It’s important to create a perimeter around the crime scene (this can be altered if additional evidence is found outside the initial crime scene). Only emergency personnel should enter and exit from the central entry point to control contamination, by creating an exit point; it helps avoid any excessive traffic through the crime scene. By secure the scene to ensure that no evidence is misplaced or damaged, or otherwise compromised.
Scene of Crime Officer- They have a responsibility to protect the crime scene from the evidence being ruined in any way. Their role is to follow correct procedures to collect the evidence- they have to document it by using a camera to take photos of the evidence before they can collect it. Samples are bagged in protective packaging, Evidence that have to be casted such as tire tracks and footprints is done under the same procedure- photographed and then make casings. Forensic Pathologist- They have a responsibility to perform an autopsy and determine a cause of death. Their role is to identify the victim and then find out the time of death of the victim and should be done sooner rather than later to get a more accurate result.
It is possible to find the weapon used, number of wounds, trajectory, direction of travel, and how the events unfold in a crime. It can interest very many people, but can also freak them out. Blood spatter pattern analysists are one of the most important people to finding the criminal who has done the crime. There are many things blood spatter analysists are responsible for, including responding to crime scenes, interacting with biohazardous material such as blood and body fluids, taking photographs, collecting samples, writing reports, and testifying in court (“Balance”). Blood spatter requires a strong background in scientific studies, and a bachelors degree in one of the natural sciences.