Essay on 2.06 Forensic Science

It does not matter the reputation you have earned for your high integrity and honesty, you will always be open to allegations of civil or criminal liability. The first type of evidence and usually the most obvious is physical evidence. Evidence can be anything from tangible objects such as cartridge cases and firearms to latent fingerprints and DNA. Evidence collection or recovery step in crime scene processing is the methods, techniques, and procedures used in retrieving evidence. Patience and care are very important at the crime scene. The criminalist should take the proper time and care in processing the scene. The work is tedious and time consuming.

Specialized cameras now allow crime techs to capture entire crime scenes on video for later reference. Therefore, GPS devices and forensic science have also been improved by technology and have enhanced law enforcement organizations’ ability to function.

Then the lead officer will need to determine the boundaries of the scene starting at the central point and extending outward, safeguarding the crime scene with yellow police tape noting possible paths of entry and exits of suspects and witnesses. It's better to close off a larger area at first and then make smaller if needed. The precautions that are taken are very important to safeguarding evidence and minimizing contamination.

Homicide detectives only investigate and focus on Homicides. College educations are recommended but not required. Murder detectives collect evidence like fingerprints DNA and stuff like that. They interview suspects and witnesses who may have information for the murder. There are two types of crime scenes. The primary crime scene is where the crime scene is where the crime actually occurred. for example if a bank get robs that is the primary scene and the getaway car and the lair are the secondary scene. primary crime scenes are usually more helpful. while secondary scenes sometimes are the only thing that criminologists have to work with. For example this may be where a serial killer dumps a body. So investigators may not be able to prove where the actual murder occurred. which means they only find evidence at the secondary scene which could lead to the primary scene or prove that is where the crime happened. For example you may find a hair or a fiber at a scene that could lead to a specific place or specific shirt or carpet. Overall investigators prefer primary scenes because it’s

The forensic technician will record the date and the time the call-out was received. The forensic technician will meet with the investigator and will be briefed about the incident that occurred. The tech will record the time they arrived at the scene and when the briefing commenced. After the briefing has

There are certain steps to photographing a crime scene and certain photos are to be taken. The most important part is for it to be in an unaltered condition. Except for injured parties, objects are not to be moved until they have been photographed from every angle. If they are then the evidence could be admissible as evidence at a trial. (Saferstein, 2009).

When investigating a crime scene before touching anything investigators must document and photograph everything, investigate all doors, windows, ect of any evidence of how offender got in and out of the crime scene, investigate every inch of the crime scene for blood, fingerprints, footprints, weapons, bullet holes, shell casings etc. and anything that looks out of place. Once this is done investigators can then collect any evidence using the right equipment.

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

It might be hard to figure out which type of evidence to use but Forensic Science evidence is definitely the most useful. It uses DNA and blood with many other things to find the suspect or criminal. Forensic Science can hold all the facts of a case together. In “Forensic Science: Evidence, Clues, and Investigation” by Andrea Campbell, it shows how and why Forensic Science evidence is the most important.

Crime scenes are searched in order to find and collect evidence and clues. First, the investigator must insure that the scene is secure and protected. Next, the investigator must plan their search and determine the number of personnel and equipment that will be needed. It is important to remember not to begin searching until the scene has been documented through notes, photography, and sketching. The normal procedure in planning a crime scene search is for the lead investigator or search leader to survey the crime scene by doing a walk through and assign subordinate workers to tasks. There are several factors to consider in the planning process. The factors are the location of the crime, the type of crime and evidence sought, where evidence is most likely to

After doing their job in he crime scene, the evidence they took will be taken to the forensic scientist. Crime scene investigators will look at the photographs and connect their theories based on the crime that occurred. The forensic scientists will also examine the victim’s clothes, while the medical examiner will analyze the victim’s body for more clues and evidence that they may find and they will all be doing this in the crime lab. The things they may find could be hair, fiber, semen, blood, another person’s DNA, bruises and many more. After the forensic scientists

evidences can tell what sex, age, and race of the suspect. If the scene was not

The first is the preservation of the crime scene. If the crime scene has not been secured and borders not set up this will result in the contamination or loss of physical evidence, which is crucial in a reconstruction. The second is an investigator is the use of inductive and deductive reasoning, not have any preconceived ideas) by using the facts of the case, in addition to photography, video, crime scene sketches, and other documentation to draw inference (M.U.S.E. (2), 2017)

Crime scene preservation should be the most important step to any first responder. This protocol should continue to be followed by anyone who processes the scene. From the moment the first responder arrives at the scene, he/she should exercise a pertinacious attitude to insure that curious onlookers and personnel who are not involved in a task related to the scene, remain outside the cordoned

The photographer that is present at the crime scene is responsible for making one picture worth a thousand words. Photography plays an integral role in the documentation of physical evidence found at crime and accident scenes as well as during forensic autopsies. Forensic Photographers are among the first crime scene technicians to arrive at crime and accident scenes. They walk through a scene to obtain an overview before they begin taking photographs. Forensic Photographers apply their technical skills and their knowledge of anatomy and forensic requirements to take photographs that convey the information that crime scene, criminal, medico legal, or forensic investigators need documented. These