OPOTA SPOS UNIT #11 INVESTIGATION (PT.1)
U11-T1 Primary Responsibilities of the First Responder to a Crime Scene - Answer --
Officer Safety
-Rendering aid
-Pronouncement of death
*Outside of obvious death, in Ohio competent medical observer has to declare death
-Securing the scene
*Inner perimeter - crime scene log
*Outer perimeter
-Dealing with witnesses
U11-T1 Measures the Officer Can Take to Control Contamination at a Crime Scene -
Answer --Personal Protective Equipment (PPE)
-Contamination
*transfer of outside material to the scene
-Cross-contamination
*transfer between evidence within the scene
-change gloves often
-do not talk over evidence
-sterilize all reusable equipment once you are done
U11-T1 Basic Steps of Scene Processing - Answer --Assess
-Observe
-Document
-Search
-Collect
-Process/Analyze
U11-T1 Difference Between Class and Individual Evidence Characteristics - Answer -
Class characteristics
-traits of evidence that allow item to be compared with a group
-shared by all members of its group
-e.g. All of a Nike Air Max model size 11 have the same sole
Individual characteristics
-traits of evidence that allow the item to be compared with a specific object or person
-e.g. cuts, scratches, wear pattern, or other defects on sole of Nike Air Max size 11 that
distinguish it from all others
U11-T1 Chain of Custody - Answer -Labeling evidence
-tags should be attached to evidence packaging at collection
-tags should never be removed
Factors to show integrity of evidence in the chain of custody
, -evidence collected at crime scene is the same as presented in court
-item must not be altered or changed
-chain must be maintained in order to document reasons why any party has dealt with
the evidence
Information a chain of custody must reflect
-Who found/had contact with evidence
-to whom the evidence was given
-reason the evidence was given to that person
-when/by whom the evidence was returned
-where/how the evidence was stored until taken to court
-any changes made to the evidence
Information which must be shown on an evidence tag
-date recovered
-time recovered
-exact location of recover
-report/case number
-item number
-thorough description of the item
-recovering officer's initials/badge number
-marked to show bio-hazard and/or sharp object
-victim's name, if known
-type of crime
*Paperwork for the chain of custody must remain with the evidence*
U11-T2 What First Responders Should Ensure Before Collecting a Device That May
Hold Electronic Evidence - Answer --the scene has been secured and documented
-legal authority exists to seize evidence
-appropriate PPE is used
U11-T2 Categories of Electronic Evidence - Answer --Computer systems/storage
devices
-Hardware/software that process data
-Mobile
-Cloud computing
U11-T2 Preserving Cloud Based or Third Party Stored Digital Evidence - Answer --
Send the company a letter of preservation immediately so data is not erased/altered by
company
-must be specific on dates and times you want
-requests are sent under authority of 18 U.S.C 2703(f)
-can only request data or content from the past, cannot request information that has not
yet been created (e.g. items suspect posts tomorrow)
-providers must store information for 90 days
U11-T1 Primary Responsibilities of the First Responder to a Crime Scene - Answer --
Officer Safety
-Rendering aid
-Pronouncement of death
*Outside of obvious death, in Ohio competent medical observer has to declare death
-Securing the scene
*Inner perimeter - crime scene log
*Outer perimeter
-Dealing with witnesses
U11-T1 Measures the Officer Can Take to Control Contamination at a Crime Scene -
Answer --Personal Protective Equipment (PPE)
-Contamination
*transfer of outside material to the scene
-Cross-contamination
*transfer between evidence within the scene
-change gloves often
-do not talk over evidence
-sterilize all reusable equipment once you are done
U11-T1 Basic Steps of Scene Processing - Answer --Assess
-Observe
-Document
-Search
-Collect
-Process/Analyze
U11-T1 Difference Between Class and Individual Evidence Characteristics - Answer -
Class characteristics
-traits of evidence that allow item to be compared with a group
-shared by all members of its group
-e.g. All of a Nike Air Max model size 11 have the same sole
Individual characteristics
-traits of evidence that allow the item to be compared with a specific object or person
-e.g. cuts, scratches, wear pattern, or other defects on sole of Nike Air Max size 11 that
distinguish it from all others
U11-T1 Chain of Custody - Answer -Labeling evidence
-tags should be attached to evidence packaging at collection
-tags should never be removed
Factors to show integrity of evidence in the chain of custody
, -evidence collected at crime scene is the same as presented in court
-item must not be altered or changed
-chain must be maintained in order to document reasons why any party has dealt with
the evidence
Information a chain of custody must reflect
-Who found/had contact with evidence
-to whom the evidence was given
-reason the evidence was given to that person
-when/by whom the evidence was returned
-where/how the evidence was stored until taken to court
-any changes made to the evidence
Information which must be shown on an evidence tag
-date recovered
-time recovered
-exact location of recover
-report/case number
-item number
-thorough description of the item
-recovering officer's initials/badge number
-marked to show bio-hazard and/or sharp object
-victim's name, if known
-type of crime
*Paperwork for the chain of custody must remain with the evidence*
U11-T2 What First Responders Should Ensure Before Collecting a Device That May
Hold Electronic Evidence - Answer --the scene has been secured and documented
-legal authority exists to seize evidence
-appropriate PPE is used
U11-T2 Categories of Electronic Evidence - Answer --Computer systems/storage
devices
-Hardware/software that process data
-Mobile
-Cloud computing
U11-T2 Preserving Cloud Based or Third Party Stored Digital Evidence - Answer --
Send the company a letter of preservation immediately so data is not erased/altered by
company
-must be specific on dates and times you want
-requests are sent under authority of 18 U.S.C 2703(f)
-can only request data or content from the past, cannot request information that has not
yet been created (e.g. items suspect posts tomorrow)
-providers must store information for 90 days
