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evidence at the crime scene
crime scene process
crime scene process
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Crime Scene Investigating and Processing
Throughout the course of this paper I am going to talk about crime scene investigating, as well as, crime scene processing. I will talk about what a crime scene is what makes it a crime scene. That happens at a crime scene, also, what to look for at a crime scene. I will talk about who is involved in processing a crime scene and when or if other jurisdictions need to be brought in.
The first thing that happens when there is a crime being reported is the police are notified by the dispatcher. The police then record the time and the subject of the call. They also need to be sure to record who made the call and what was said during the call. Lastly the police need to be sure to record the dispatchers name and or number. Police going to a call have to be very alert and watch for fleeing suspects, witnesses or victims and the way to the call. They have to record their route to the scene and their time of arrival. Police should always park away from the scene and the evidence. Finally they want to be sure to notify the dispatcher when they arrive at the scene (http://www.rcmp-learning.org/copp/encopp/s_crime/htm).
Once the police have arrived at the scene, they first have to verify the problem. They have to record the time and the situation. They also need to be sure to record how they learned about the crime or who told them. They would also want to record the appearance of suspects. 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. If there is a death the medial examiner needs to be called immediately (http://www.rcmp-learning.org/copp/encopp/s_crime.htm).
After the situation has been assessed, everything is recorded, and the injured or dead have been cared for the crime scene needs to be protected. This is a major responsibility of the first officers...
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... for physical evidence you have to look for items that vary in size. They can range anywhere from large objects to minute substances. It is very important to understand what types of evidence can be found at various types of crime scenes. There will be some things that are not found at the crime scene, however. When investigating a burglary you need to know to look for tool marks on a door or a broken door or window. A forcible rape you want to look at bruises semen stains or witnesses that may have heard screaming. Things like this are very important for an investigator to know to look for (Bennett & Hess, 71).
As you can see there are many different steps in investigating crime scenes. It is very important that an officer follow the proper steps in an investigation. Failure to do this can result in a suspect to go free, possible charges against the department. This is for the protection of the victims, witnesses and the suspects.
CITES
Http://www.rcmp-learning.org.copp.encopp/s_crime.htm
Bennett, Wayne W & Hess, Karen M (2004). Criminal Investigation, 12-13, 38-39, 48-56, 71.
Http://www.feinc.net/cs-proc.htm. M/Sgt. Hayden B. Baldwin, Retired. 3/2000.
When police officers investigate suspect, especially a criminal suspect, public interest was against and officers owe a duty of care to general public for the purpose of public safety. Meanwhile, private interest was against as well and officers owe a duty of care to suspect to ensure suspect’s rights and avoid charging innocent person. In order to balance these two conflict interests, a clear standard of care need to be established so police officers could follow the procedures to prevent negligent investigation.
Once the officers arrive on scene and talk to the homeowner or business owners they must now for their and the citizens safety get the scene secured in a timely manner. Generally, it is not necessary to go to far lengths to secure a burglary scene because most times the burglar is already gone away from the scene of the crime but they still need to secure the scene just to be safe. They first need to ask the victim to avoid touching anything inside of their home or business, and try to keep them in an undisturbed portion of the scene such as the garage or in the kitchen where its likely the offender did not go through. Traffic through the building should be minimized. This is very important so that when the crime scene team arrives on scene they are able to dust for prints and look for clues that will help them head in the right direction to catch the assailant. In some cases the victims may have already been through their
Crime scenes are known to have many clues left behind. The obvious would be a the body or bodies, clothing, and sometimes even the murder weapon. While these are great way to solve a case there's another kind of evidence; trace evidence. Trace evidence are small pieces of evidence that are laying around a crime scene. There are many types of trace evidence some of them include metal filings, plastic fragments, gunshot residue, glass fragments, feathers, food stains, building materials, lubricants, fingernail scrapings, pollens and spores, cosmetics, chemicals, paper fibers and sawdust, human and animal hairs, plant and vegetable fibers, blood and other body fluids, asphalt or tar, vegetable fats and oils, dusts and other airborne particles, insulation, textile fibers, soot, soils and mineral grains, and explosive residues. Although these are the most common found elements, they are not the only ones. The Trace Evidence Unit is known to examine the largest variety of evidence types and used the biggest range of analytical methods of any unit. materials are compared with standards or knowns samples to determine whether or not they share any common characteristics. In this paper I will discuss the different kinds of trace evidence and how crime scene investigaros use it to solve cases and convict criminal.
Lyman, D. Michael; Criminal Investigation, The Art and Science; 3rd edition, 2002 Prentice Hall. Pgs. 188-200.
Forensic Science, recognized as Forensics, is the solicitation of science to law to understand evidences for crime investigation. Forensic scientists are investigators that collect evidences at the crime scene and analyse it uses technology to reveal scientific evidence in a range of fields. Physical evidence are included things that can be seen, whether with the naked eye or through the use of magnification or other analytical tools. Some of this evidence is categorized as impression evidence2.In this report I’ll determine the areas of forensic science that are relevant to particular investigation and setting out in what method the forensic science procedures I have recognized that would be useful for the particular crime scene.
Crime fighting is incredibly time consuming and can be immensely complicated. As I mentioned before, shows will often lead the viewer on to think that one person does all the work at a crime scene. In reality, the process goes more along these lines: When a call is made that needs assistance, a uniformed officer will be the first one on scene. He will do his job of securing the area and making sure any other threats have been neutralized. If he needs, he will call for detectives to come and investigate as well as interview any witnesses in the area. Shortly thereafter, crime scene units will show up and help in recovering physical evidence such as prints or traces of DNA. Following all of these different units and people arriving, the scene and evidence needs to be photographed, documented, and chronicled. Every single member of the team will record his or her own take on the scene by filling out paperwork (Fact vs. Fiction). The bottom line here is that television is
When an individual enters the criminal justice system, it always begins with the police. So in order for police to be involved in any situation, there has to be a crime committed or violation of any law which has been put in place by the government. As the police act as the enforcement agents of these laws, they are the first ones to be involved. There are four steps that police follows when there is a crime – the crime itself, the report of the crime, the investigation of the crime, and the arrest to finish this process – these are the very basic avenues which police follows.
When arriving to the scene you would want to approach slowly. This is for safety reasons as simple as the suspect might still be in the area and it can cause you to be in great danger. You would also want to ask yourself “what crime was committed here?” and a couple of similar questions in that aspect. However, when you do
In today’s time, modern Crime Scene Investigation has increased rapidly. From throughout the late 1900’s and in the early 2000’s (Taylor 1). For all of the evidence that they find, a solid foundation has formed over the thousands of years of Crime Scene
A basic level police officer job is usually driving around on patrol looking for any sort of crime or illegal activity that is going on. A police officer’s day is usually not as dangerous and exciting as shown on tv or movies. Most officers spend their time patrolling neighborhoods or on traffic duty. They are required to patrol areas on foot, motorcycle, bicycle, or in a police car. This helps them complete their tasks for the day. Police officers need to become familiar with the area they are assigned and know any existing conflicts. Officers always need to be prepared to get a call for service at any point in the day. Police officers experience many different types of situations such as injuries, public disturbance, or a serious crime. Basic occurrences they are called to include assaults, domestic disputes, robberies, car accidents, fires, and noisy parties. When arriving at these scenes officers need to take control of the situation properly and immediately. Police officers are not always on the job alone. If there is any situations containing an injury the officers notify first aid to help the inju...
This is where the crime scene unit (CSU) comes in to play as well as the detectives. Once the detectives arrive on the scene they will be looking for a suspicious individual or individuals and speak to witnesses and take their testimonials or story, they basically tell the investigator what they observed. On a crime scene investigation packet it states "when seeking for witnesses and taking their testimonials it is best to separate them so no individuals have identical stories." Once this has been done and the investigator takes the testimonials they must determine if a crime took place. For example if a person was stabbed in the abdomen and first responders arrived and trying to help the victim and he dies then the crime that took place was a aggravated battery but turned into a homicide. If a person was sexually molested and beaten while being molested then the crime that occurred is a sexual battery and rape. Once this is completed then the investigator will determine the nature of the crime. What this means is that if it is a violent crime, a website
First, you would call 911 as soon as you see, hear, experience or know of both crime that are being committed. The caller should give the dispatcher as much information as possible so the officers can find the crime scene, and try to describe as much detail of what the suspect or suspects look like or what they are wearing. The witness should only stay away from the crime scene and wait for the police to arrive on the scene. However, if the victim is hurt or need CPR. I think the witness should step in and help. Once the police arrive, the witness should write out the statement giving, as many details that witness know about the crimes that was committed. Make sure you answer any questions that the police have with as much detail as possible. Make sure you leave your contact information with the officers just in case they need to ask you any more questions about the crimes that was
Physical evidence is additionally important in every criminal investigation because too often witness accounts are sometimes biased or unreliable. Physical evidence such as trace evidence, DNA, and fingerprints may objectively attach one or more persons to a victim or suspect to a crime. Favorably, physical evidence can also demonstrate inestimable for exonerating an innocent suspect. Laboratory members and criminal investigators should perform together to resolve the biggest portion of evidence to institute the right suspect for a strong prosecution. Willingly, investigation officers should aggressively contact laboratory personnel when questions arise about the cases because DNA evidence is sensitive.
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. Do a cursory check of the crime scene to obtain any transient evidence and secure any weapons found at the scene (in this case it was already at the scene with the suspect). Crime scene analysts and investigators communicate with first responders and are quickly briefed on the situation, and now a more thorough search can be conducted.
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.