Forensic evidence

very important, as it stops the evidence from getting contaminated or destroyed. After wearing all the personal protective equipment, I signed the evidence log and on the evidence log I had to write the exact time and date at which I arrived at the crime scene. It is important to write the correct information on the…

the location about the found evidence. These recordings will play a key role in the trial process (Warrington,…

Latent fingermark being imperceptible to the unaided eye is the decisive form of physical evidence found on divergent surfaces at the scene of crime. It is decisive because of its perpetuality and uniqueness. The word ‘fingerprint’ is common in commonality but individual to a person. When a person grasp something, he left the traces of residues (secretions of glands) conforming impression of the ridges of the fingers. The fingermark residue is a complex matrix of secretions and xeno-materials.…

D. Fingerprinting is an impression or mark made on the surface by a person's finger tip. It is used for identifying individuals from the unique pattern of whorals and lines. This fingerprinting is valuable to detectives case because the detective who has the mystery case, where a person was murdered would use fingerprinting. You would use fingerprinting to track down the murder and the bystander. How you can see fingerprinting is not with the naked eye but with a special light. Fluorescent…

Blood is an important piece of evidence at a crime scene. Blood is used for both DNA evidence and blood typing but blood spatter is just as useful. The diameter of blood drops is used to determine the height from which the blood drops fell and the blood drops shape can be used to determine the angle the blood was dropped at. Blood drops can also be used to determine the cause of death at a crime scene and blood drops can even be used to determine the medium that caused the death at the crime…

Fingernails As Trace Evidence Shamyiah Underwood Advance Criminalistics (FSC 620) National University Fingernails As Trace Evidence Trace evidence is the physical evidence resulting from the transfer of small quantities of material (e.g., hair, fibres, body fluids, textile samples, paint chips, glass fragments, gunshot residue particles, mud, insects, etc.) which may be collected by the police forensic unit, sexual assault team or medical examiner (Medical…

Abstract This case study examines Jack the Ripper and the horrible acts of violence he committed in the East End of London during 1888 where five women were murdered. These murders received so much media coverage that what would have been the terrible tragedy of five people being murdered became one of the most famous series of murders and the killer became one of the most terrifying of all time. During this case study, I will describe some current techniques that could have been used in the…

Physical evidence that is left behind in a crime scene plays and important role in reconstructing the various events that took place during the crime . Crime scene reconstruction depends upon joint efforts of law enforcement personnels, medical examiners and criminologist to find the physical evidence and to understand the events that surrounds the occurrence of a crime. If there is a bloodstains then the location and the distribution of the blood stain along with the spatters maybe useful in…

Bloodstains can be key evidence to a crime because the patterns can be as unique as finger prints by giving direction, height and angel of the blood spatter. Since no one in the world has the same DNA you could figure out exactly who the blood came from and if you know where the killer or victim was you could triangulate the position of the crime. It also can give you a time frame for the crime by the way the blood coagulates and dries. There are three types of bloodstains passive stains,…

Based on the evidence collected at the crime scene and the subsequent analysis, we concluded Mr. Marquez committed this crime. We conducted a series of tests and analyses: a burn test, a microscopic fiber analysis, and a microscopic hair analysis. These tests and analyses all pointed to Mr. Marquez. Under the microscope, the fiber found on the crime scene looks exactly the same as a wool sample. They are both off-white with little strands wrapping around to create a bigger fiber. Additionally,…