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  7. Unit 23 - Forensic Evidence, Collection and Analysis

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applied science unit 23 aim a , gathering forensic evidence
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  • Unit 23 - Forensic Evidence, Collection and Analysis
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  • PEARSON (PEARSON)

This is forensics unit 23 Aim A done at a distinction level. Feel free to use how you want, there will also be a package deal including aim A,B,C and D which will be cheaper if you want all the assignments.

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  • January 30, 2023
  • 22
  • 2022/2023
  • Essay
  • Unknown
  • A+

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  • essay
  • unit 23
  • aim a
  • forensics

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  • BTEC
  • PEARSON (PEARSON)
  • Applied Science 2016 NQF
  • Unit 23 - Forensic Evidence, Collection and Analysis
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Khansa Zahid
Id number: 40176861
Unit 23: aim A
P1
M1
D1

, P1
The steps in order of what happens when a crime takes place and what to do are: restricting/
securing the scene, separating the witnesses, scanning the scene, observing/ note taking,
sketching/ taking photographs, searching the evidence and then securing and collecting the
evidence and then transporting the evidence. Each of these will be explained below.
Restriction of access
This includes regulating, keeping under control or eliminating public access to the crime
scene. This not only includes random civilians passing through but also any personals from
the media e9. paparazzi. Before anyone should step foot inside the crime scene, it is the
first attending officer's job to take steps analytically and carefully towards the crime scene.
Another job they must take part in arresting any recalcitrant suspects. If there is a victim on
the crime scene, the first attending officers must check for preservation of life. Deciding
whether the victim is alive or dead, if the victim is alive and in critical conditions, they must
try to save that person if injured. Notes must also be taken of important times e g., time
taken to get to the scene, time left for the scene. Since the floor is the most frequent location
for storing evidence and has the highest risk of contamination, extra care should be taken
there. If the officer needs to change something during the investigation, notes should be
made of this as well as the times. The condition of the doors, windows, and lighting (artificial
and natural), the presence of any signs of activity, the presence of any odours and how
emergency medical services or fire personnel have altered the scene, any vital information
regarding the suspect e.g., their physical and mental condition, if they are/ were on any
drugs or alcohol. After the scene has been stabilised, it is important to cordon off the area to
stop unauthorised individuals from entering and potentially contaminating it. This includes
the scene as well as any adjacent locations that may contain important evidence (driveways,
pathways, etc) Phones at the site should never be utilised. Instead, investigators and other
appropriate staff should be informed and sent to the scene. No officer should discuss what
has happened to anyone not involved in the crime e.g., media or civilians nearby. Everything
should be kept confidential. SOCOs (scene of crime officers) must wear PPE ea. gloves,
suits, goggles, shoe covers and masks, Them, the FOA and forensic examiners must
carefully collect any evidence important related the crime scene. A hazard at a crime scene
can include eating/drinking so it is prohibited and should be done in a separate area from the
crime scene. Protecting the crime scene also entails safeguarding the detectives working
there. Never leave one person alone while processing the scene, whether they are a
member of the public or a police crime scene investigator. This is particularly valid if the
suspect has not yet been located. There are several reports of potential suspects who are
still at large in or close to the scene of the crime. There should always be at least two
individuals managing the scene because of this. At least one of these individuals need to be
armed with a firearm with a radio. (1.,1.)

Observation and recording of the scene

The people responsible for observing and recording the crime scene will be the crime scene
managers and SOCOs. Collecting all the information they must be done in a well thought out
way. All the information that is taken in is done in order to avert any important pieces being
destroyed or lost. The information collected will be finding out the point of entrance/exit,
taking photos done with a professional camera with a scale next to the object, taking
sketches of the scene. The authorised personnel at the crime scene also have the job of
taking notes. The first attending officers take statements from witnesses and log in who
come in and out of the crime scene. Going into detail on how these things are done; after
compiling all the data, a conceptual strategy is developed for how the crime scene will be
examined. Every component of the crime scene investigation should be documented with
several notes and pertinent dates. A stroll through the area following the "trail" of the crime
will often be the first step in the assessment of the scene. The trail is the location where all

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