PHYSICAL EVIDENCE

Physical Evidence using Forensic Lab

Physical Evidence using Forensic Lab



Introduction

Physical evidence is any substance, solid, liquid, or gas, used to determine facts in a given situation showing that a crime has occurred or establishing a link between the victim and perpetrator. This evidence can be tangible evidence, which are means touchable; trace evidence, which is not always seen by the naked eye; or transient evidence, which can be washed away, destroyed, lost, or damaged.

Crime Scene Investigation involves the use of scientific methods, physical evidence, deductive reasoning, and their interrelationships to gain explicit knowledge of the series of events that surround the commission of a crime. Crime scene investigation is to scrutinize the place of crime and its vicinity to gather the forensic evidences of the crime(s) (Fisher, Tilstone, Woytowicz, 2009). Although this process seems simple enough, it is a complex task even learned crime scene investigators require years of work experience before they are able to develop the skills to become better at this job.

There are several ways you can study, examine and analyze evidence that may help boost your crime analysis. However, all these methods are based on a protocol for monitoring some basic principles when processing a crime. Criminalists discover crime cause and eventually trace the culprits to crime result.

Discussion

At the Turn-a-Round Lounge Sam and Joe started the fight over the girl and Sam murdered Joe. The arm used to murder was knife. It was the dispute over girl Michelle that made two boys fight. The criminalists have a wide range of evidences that could be collected from the crime scene. Sam stabbed a knife in Joe's chest and nicked his vain. Joe died when his vein cut. The knife could be taken as physical evidence and could be sent to forensic lab for investigation.

Arm Examiners

Most of the crimes are committed with guns and Knife. Criminalists trained to recognize the arms used in crime. They facilitate for clues in crime. They safely recover and render arm. They put these arms in a paper bag, paper envelope or cardboard box (Fridell, 2000). Plastic bags not used to collect the arm because; it may moist and destroys evidence. The collection of arms is the first priority of Criminalists after entering to the crime scene. These arms sent to forensic lab for further investigation.

Print Examiners

The crime scene in the lounge has bloodily footprints near door and parking area that could be collected for verification in the forensic lab. Finger prints could also be examined by the criminalists.

The Criminalists are responsible for investigating prints found at the crime scene, checking them against suspects in their central database. They examine foot prints, finger prints and palm prints. These prints are copied from objects, floors, stairs, windows or any part of the area where crime is committed. Finger prints are the most significant to analyze because, it is difficult for the offender to prevent from finger or foot print.

Document Examiner

The police got a warrant to search Michelle and Sam house where they ...