When the Improvised Explosive Devices (IED’s) in New York and New Jersey were discovered, it provided the detectives with information to add to their investigation. The wires, shrapnel, flip-phones, undetonated explosives, and burnt traces from the devices help build a picture on what the bomb used to look like along with the materials it consisted of. The FBI has their own extensive forensic science division and the latest lab equipment where they will look through the evidence. When a similar incident happens, the FBI will use their scientists from their Evidence Response Team (ERT) to link and retrieve the evidence from the scene as well as ensure the scene is safe. When thirty-one people were injured when a bomb exploded in New York City’s
The photographic logs details who took the photos of the scene, which light was used to take these pictures these pictures will later be used to construct a diagram. Finally, the evidence recovery log which lists what piece of evidence was recovered such as bone fragments, articles of clothing, or bullets from the crime scene (Swanson, et al., 2012) In this series, Dr. Brenan can be seen accompanying FBI agent Seeley Booth to interrogate both witnesses and possible suspects. Further, in the series, Dr. Brenan can be seen in possession of a weapon and join the hunt for the criminal. In reality, the forensic investigator is needed in the scene of the crime in order to collect evidence. This type of portrayal from the media is leading the public to believe that both the agent and the investigator or attorney will engage in the “exciting adventures” when the reality is it is just the way the media portrays these types of scenarios (Surette, 2015). The way the series portrays forensic science differs from the real world even though the author of the series is a forensic anthropologist
In unit six we learned about anthropology and entomology and how forensic scientist use it different cases. Even though entomology was not that useful in The Oklahoma bombing case, anthropology was extremely useful for identifying the victims. Since it was an explosion, Forensic anthropologist had to study different remains of the victim's body and use different techniques (such as examining bone development) to identify who they were. For example, the death toll was originally 169 people (one person higher) than it is now because of an unidentified left leg was found and they couldn’t find the body it originally came from. Later, medical examiners compared the size of the tibia of the leg to other victims right leg. Finally forensic found
Clay Dillow’s “To Catch a Bombmaker” was published by Popular Science in October 2015. This article educated the reader about the FBI’s Terrorist Explosive Device Analytical Center— a key aspect in the fight against terrorism. Dillow focused on ethos and logos to strengthen the validation of his claim concerning the importance of the TEDAC and was successful in persuading the reader to believe in its significance as well. He used expert quotes from FBI agents to give the article credibility; In addition, he presented statistical data in a clear and concise manner and gave many factual cases in which the TEDAC facilitated the government in their pursuit of terrorist and bomb makers. As proven by Dillow in “How to Catch a Bombmaker,” the Terrorist
After looking at the five steps in comprehensive incendiary investigation it looks like a form of scientific method used in many other areas of fire investigation. The five steps are fire scene investigation, assessment of investigative needs, formulation and evaluation of a strategy, implementation of strategic plan and presentation of formal investigation. The five steps, like the scientific method, they have a beginning, middle and end. After I go over the five steps then I will identify the methodology in securing the interview, identify the interviews I will need and I will list some question.
The evidence against Timothy McVeigh in the Oklahoma City bombing was overwhelming specifically the forensic evidence. Forensic investigators recovered McVeigh’s fingerprint from a receipt for two thousand pounds of a basic explosive ingredient called ammonium nitrate (Saferstein, 2015). Furthermore, investigators located PETN residue on the clothes McVeigh was wearing on the day of the bombing, and PETN is a component of detonating cord (Saferstein, 2015). The forensic evidence was vital in the conviction and execution of McVeigh, but the piece of evidence that lead investigators to McVeigh was located underneath the rubble of the Alfred P. Murrah federal building. Consequently, as investigators were sorting through the destroyed federal building, they located the rear axle of the Ryder rental truck used to transport the 4,800-pound bomb (Gorman,
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.
Therefore, the criminal justice system relies on other nonscientific means that are not accepted or clear. Many of forensic methods have implemented in research when looking for evidence, but the methods that are not scientific and have little or anything to do with science. The result of false evidence by other means leads to false testimony by a forensic analyst. Another issue with forensic errors is that it is a challenge to find a defense expert (Giannelli, 2011). Defense experts are required to help the defense attorneys defend and breakdown all of the doubts in the prosecutors scientific findings in criminal cases. Scientific information is integral in a criminal prosecution, and a defense attorney needs to have an expert to assist he/she in discrediting the prosecution (Giannelli,
Most of the time people cannot comprehend why people that work in the forensic department are sometimes overwrought with anxiety when they have a serial killer case brought into their lab. These forensic scientists have these feelings due to knowing that this could potentially help advance technology. Over the years, serial killers have unpremeditatedly helped further advance the criminal investigation process by unintentionally leaving things behind for a forensics team to analyze. When the team finally solves these cases, it continually propels things such as DNA (Deoxyribonucleic Acid) analysis, finger print techniques, and not to mention the investigation process itself.
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
Crime Scene Investigation For my assignment, I will be looking into the case of James Bulger, aged 2 years old, who was kidnapped and murdered by John Venables and Robert Thompson on February 12th 1993. Through evidence found at the crime scene and testimonial statements, the police saw that the two boys, ages 11, abducted James from Bootle Strand Shopping Center, Liverpool. They took him on a long, aimless walk where they brutally attacked him and left him for dead. In my assignment I will show how work done by the police, forensic scientists and Investigators helped to convict Jon and Robert.
The amount of evidence can either help win or lose a case. Every crime scene has evidence available for officers to collect. It is important for them to know what the standard protocol is for collecting evidence and how to properly collect it without contamination.
Investigating an arson is very difficult because fires tend to destroy evidence and firefighters while fighting the blaze will move things around and destroy even more evidence. Once an investigation is open for an arson, investigators need to find the source of heat and the material ignited in order to determine if it was a set fire. The two most important question investigators will ask is where and how did the fire start? When a fire has multiple starting points that should raise the level of suspicion and dictate if the fire was purposely set. Other preliminary steps to take is for investigators to find ignition devices. These devices can be gasoline, chemicals, matches, or other types of accelerants. Accelerants also known as boosters speeds of the process of a fire by adding to the initial fire for the fire to burn rapidly and increase the intensity. Firefighter and law enforcement can look for melted metals or similar materials. This can mean that accelerants were used because metals usually burn at about 3,000*F. The most important thing for law enforcement and fire fighters when suspecting an arson is to not move and contaminate any physical evidence. The first thing they should secure is any harm or injuries and clear
The duty of a law enforcement officer is to protect and serve the public. The manner in which they accomplish this extensive task is by investigating crimes and preserving the evidence so that it may be presented in a court of law. The presence of computers and other technologies are growing at a rapid pace. Since police officers are required to investigate crimes both at physical scenes as well as virtual, or computer based crime scenes, the need for increased technology among police departments has never been greater. Keeping the technological needs of police departments up to date not only will increase efficiency of these departments, it will
Crime scene investigators recovering and packaging the forensic evidence must ensure the packaging is secure and no evidence can escape. If the packaging isn’t correctly secured using the correct methods, then its evidential value is damaged and the evidence can be used in court (Langford, 2015). Packaging protects the evidence from the beginning of the investigation as it moves between locations for forensic analysis. Recovered forensic evidence is normally packaged using two layers of protection, primary and secondary. Primary packaging provides protection, whereas, secondary ensures the continuity and integrity of the evidence are
Forensic science has now been recognized as an important part of the law enforcement team to help solve crimes and cold cases. The advances in technology are being used each day and we must continue to strive to develop better advances in this field. The recent discovery of using DNA in criminal cases has helped not only positively identify the suspect, but it has helped exonerate hundreds of innocent individuals. “With new advances in police technology and computer science, crime scene investigation and forensic science will only become more precise as we head into the future.” (Roufa, 2017) Forensic science and evidence helps law enforcement officials solve crimes through the collection, preservation and analysis of evidence. By having a mobile crime laboratory, the scene gets processed quicker and more efficiently. Forensic science will only grow in the future to be a benefit for the criminal justice