Crime Scene Evidence Research Paper

When people usually hear the word forensics they usually automatically visualize crime scenes filled with things that can vary from blood, bullets, fingerprints ect. Unfortunately, it is not as cut and dry as you think, you're only seeing a small piece of the picture. The subject of forensics itself is very broad and actually involves a variety of different sciences all mixed together including, biology, chemistry, genetics, toxicology, phonetics, medicine, engineering, anthropology and many more. It is one of the fields of law enforcement, were technology and crime-solving all come together as one. Gathering the information needed to figure out what happened and the methods used to connect pieces of evidence to the crime scene were also not

Forensic evidence is tangible evidence that is obtained from the crime scene and examined by utilizing various scientific procedures to assist examiners in cracking a case. This Forensic evidence is obtained at the scene of a crime and transported to a laboratory, where it is handled by specialists. Three types of forensic and physical evidence are fingerprints, digital evidence and impressions.

Like you see in the Crime scene investigation shows like CSI and Bones, there are many things that go into investigating shows a lot of those things happen but it takes much longer than forty or sixty minutes to solve the crime. While crime scene investigating is very serious job, collecting evidence at crime scenes requires education and knowing of what you're doing, requires hard work, and it can be difficult to perform this job.

Therefore, DNA is one of the most common things a forensic technician looks for. Forensic technicians investigate crimes. There job is to look for physical evidence that will be collected and later analyzed. While working on an investigation the forensic technician may seem to be looking for a specific sample. It may be a blood sample or even a single drop of saliva. In some cases, clues may lead to a single fingerprint left behind to solving a crime. The suspect assuming he or she has wiped away all traces that would lead them to the crime scene. Never realizing what the suspect might have left behind. This may have seemed irrelevant to the forensic technician. Who is taking part in searching the crime scene. DNA left behind such as a strand of hair leads to a suspect. To the result it may be found in the carpet, or in any other type of clothing.

Advances in DNA technology has expanded greatly in the world of forensic science. In the past a vast number of crime scene evidence was not considered for analysis is now being tested. Trace DNA is more effective in this century when convicting a criminal than it was 20-30 years ago. Due to the consist improvement of DNA technology forensic scientist are able to put away criminals the correct way.

Forensic science technicians are vital on a crime scene because the collect and analyze physical evidence. Evidence is one of the most important factor of a crime scene because this puts in investigator a step ahead in finding the suspect of a crime. Crime scene specialists help to collect and preserve evidence in a crime scene. There are rules concerning the collection of data in order to preserve its natural state. For example, “all non-movable items, such as fingerprints, at a crime scene should be processed at the scene using gray powder, black powder, or black magnetic powder. Polaroid 665 black and white film loaded in a Polaroid CU-5 camera with detachable flash should be used to make one-to-one photographs of prints which do not readily lift.” (Schiro, n.d.) Also in the case where there is a computer involved, if it is turned on, it must not be turned off until all the information is properly collected and stored on a file for later use. DNA examiners usually search for anything that could possibly contain DNA. These include fingerprints, hair, blood, semen, bite marks, and dead skin found under fingernails. Tests can be done to determine whether the DNA is the victim’s own or the possible suspect. The coroner’s role is to certify the death of an individual and if unknown, to gain the identity of the victim. These agencies

Behind every court case there’s a train of forensic science evidence and research. Forensic science is the application of scientific principles of criminal justice. In many court cases a forensic scientists is the one on the scene collecting finger prints, photos, blood samples and other evidence. Unfortunately one of the controversial issues in the forensic world is the evidence and its lack of verification of its reliability. In the field of forensics there are issues in finding proof in generating conclusion, fundamental knowledge to solve problems, and the whole false memory defense in the court. These issues can be solved in many ways like extensive research, preparation and training. These issues

That is a good question, one worth answering. Forensics is a scientific tool that has come to its own starting about the 80’s. Fingerprinting was one of the first techniques used to help in identifying the criminals that committed the heinous acts. Fingerprinting uses a brush and powder to enhance the ridge details on the fingertips adhering to the oils left behind. Another awesome way they have been able to pull prints off soft surfaces like bed sheets is by using superglue and heat. Fascinating isn’t it? Since then Forensics has become even more evolved. Fingerprints now go into a database known as AFIS or Automated Fingerprint Identification System, which has the prints of everyone

A crime scene analyst (CSA)), also known as a crime scene investigator or forensic science technician, supports police detectives or other law enforcement investigative teams by locating, collecting, and possessing evidence.

Crime Scene Analysis (CSA) is a strategy that uses the behaviors manifest in an offense to predict characteristics about an offender. This type of analysis entails preserving and interpreting both physical evidence and the specific features of a crime (Turvey, 2011). In sexual offenses CSA is also likely to include data such as the relationship between the victim and the offender in the crime, the demographics of the offender, or information on how much violence transpired during the offense. Additionally, in sexual offenses whether or not the offense involved contact is also an essential component of CSA (Douglas, Ressler, Burgess, & Hartman, 1986).

They have to make sure that before they entered the crime scene, nothing in the scene should have been moved. While they are going through a walk-through, they may have to construct theories about what happened in the crime scene based on visual examination. Investigators have to take photographs of the scene and will later on be collected. Taking photographs of the scene will help them solve the crime because there are some points of the investigation that investigators may have overlooked evidence, and that evidence could be found in the photographs. After taking photographs of the scene, they will start to collect clue and evidence that may lead them to their possible suspect(s). What they may find in the crime scene are fingerprints which can be done using colored powder and a brush, other thizngs such as blood, firearms, hair, glass and many more things that can be found in the crime scenes.

I have always loved suspenseful whodunit television shows, movies, and books that use forensic science to crack the cases. My favorite television show is The First 48, my favorite movie is The Silence of the Lambs, and my favorite book is The Body Farm. Therefore, I was excited to have the opportunity to take this course and learn even more about the subject of forensics. This essay gives a summary of N. E. Genge’s book, The Forensic Casebook: The Science of Crime Scene Investigation, and includes the things I disliked and liked about the book.

Before DNA testing existed in aid of crime solving, simple logic was used, but since the late 1800s, DNA testing has advanced. DNA analysis is used for comparing samples from a crime scene to a database of possible offenders. Forensic scientists have developed various technologies for analyzing offenders’ DNA, such as the Combined DNA Index System, the Automated Fingerprint Identification System, the National Integrated Ballistics Identification Network, and trace evidence. These systems help investigators by linking “previously unrelated cases” ( Morton and Hilts 29).

On September 30, 2015 at 8:25, a 911 caller, identified as Mr. Kenneth Ross/Witness #1, reported he found the body of a black male lying face down in the park near his home with blood all around him and he appeared to be deceased. Witness #1 reported the body was located in Woodbury Park adjacent to Wilson Drive in the Pineview neighborhood. The body was near a park bench on the west side of the park. Dispatched at 8:30 a.m., I arrived on scene at 8:45 a.m. and immediately initiated my field notes, began cordon procedures, initiated searching and identifying evidence, identifying possible witnesses and notified the dispatcher to contact the city coroner and have them respond.

“Deoxyribonucleic Acid, also known as (DNA), was first introduced in the 1800 by Alphonse Bertillon, a French Anthropologist. DNA, which defines the hereditary make-up found in humans and other living organisms, can be obtained from the blood, saliva, sweat, hair, and urine. DNA profiling was mainly used as a method of determining paternity.” (Cormier, 2005). In 1986, DNA was first introduced into the courts when investigator’s in England asked molecular biologist, Alec Jeffreys, to use DNA to verify the innocence of a 17 year-old boy. He had been identified as a perpetrator in two rape-murder cases in the English Midlands. The tests proved that the teenager was in fact innocent and was not the perpetrator of the crimes. Because of DNA testing the perpetrator was eventually