Module 2
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Objective and definition of CSI
The process of recognizing, searching, collecting, preserving, and documenting physical evidence at the Crime Scene. Covers the process of identifying and interviewing witness and/or victims at the Crime Scene, including on the spot arrest of the suspected offenders.
What are the two primary purposes of Crime Scene Investigation?
• To establish what happened. • To identify the responsible person/s
The CSI Team Who are at the scene:
First responder Investigation-on-case
First to respond to the calls for assistance in case of incidents of crime Buddy system (2 people or a partner system)
First responder
Who is designated to conduct the inquiry of the crime by following a systematic set of procedures and methodologies.
Investigation-on-case
What are the PRIMARY ROLES OF A FIRST RESPONDER
To give first aid (Either to the victim/perpetrator or to both) To apprehend the suspected offender To protect, and if necessary, collect and preserve evidence To cordon off and protect the crime scene
What are the RESPONSIBILITIES OF THE IOC (Investigation-on-case)
Assume responsibility of CS Assess the CS Conduct interview of witness/es Conduct CSI or request for SOCO
The CSI team is composed of
Investigator-on-case Investigator/recorder Evidence custodian Composite Illustrator Photographer
When should the IOC REQUEST FOR SOCO?
Heinous Crimes Sensationalized Crimes Also, crimes involving public officials or personalities, specialized crimes (bombs, chemicals), mass fatality
A forensic procedure performed by the trained personnel of the PNP Crime Laboratory ____ team through scientific methods of investigation for the purpose of preserving the crime scene, gathering information, documentation, collection, and examination of all physical and other forensic evidence.
Scene of the Crime Operative (SOCO)
Who are the members of a SOCO team
SOCO Team Leader Sketcher or Measurer Evidence Custodian SOCO Driver/Security Forensic Specialist Forensic Photographer
What are the CRIME SCENCE SAFETY
Hand protection Eye protection Foot protection Other protection (Protective helmets, gas masks)
7S’ of Crime Scene Investigation
SECURING the scene SEPARTATING the witnesses SCANNING the scene SEEING the scene SKETCHING the scene SEARCHING for evidence SECURING and collecting evidence
This is the job of the first responder. It is their job to make sure that the scene is safe for all individuals.
SECURING the scene
Witnesses must not be allowed to talk to each other to avoid witness working together to create a story.
SEPARTATING the witnesses
Forensic examiners need to scan the scene to determine where photos should be taken. From, this they can determine if it is a primary of secondary crime scene.
SCANNING the scene
Crime scene examiners needs to see the scene by taking photos of the overall are and close-up photos with and without ruler and evidence markers.
SEEING the scene
An accurate rough sketch of the crime scene is made, noting the position of the body (if any) and any other evidence.
SKETCHING the scene
Depending on the number of investigators, specific search pattern should be used, and location of evidence marked, photographed and sketched.
SEARCHING for evidence
All evidence need to be properly packaged, sealed, and labeled. Specific procedures and techniques for evidence collection and storage must be followed.
SECURING and collecting evidence