Serious crime investigation Flashcards
(133 cards)
What are two teams in a serious crime investigation
Investigation and support
Two key tasks of any investigation are
Gathering and preserving evidence
And
Documentation
What is the purpose of holding team conferences when investigating a major crime
Keep all team members up to date with the Enquiry
Give team members an opportunity exchange views and pass on important information
Give the 2ic the opportunity to pass on instructions to staff on file management and other admin matters
Give the officer in charge the chance to brief the team on important investigative topics, priorities and which lines of inquiry to follow
What are the different types of confrences
Initial
Regular
Debriefing
Phase team
What are other incidents that homicides could be reported as
Missing person Unexplained sudden death of infant unexplained death Suicide Fatal fire Crime scene where no body is found drug related death abduction Hit and run vehicle collision Violence where no fatality is anticipated
Describe who should be appointed OC Body at a serious crime
An experienced investigator with forensic awareness, where this is not available they may require monitoring or additional support
Responsibilities of OC body
- Maintain security and continuity of the body, samples and exhibits from scene to the start of the PM
- Record all actions undertaken with body and by whom
- Secure and guard the body, samples and exhibits associated to the body with dignity and respect.
- Ensure all cultural responsibilities are addressed
- Note and record all observations of the body
- Photograph the body in situ and consider other imaging techniques
- Details of all medical staff and others who tended to the body
- establish whether body has been moved or disturbed
- Ensure deceased person certificate is signed
- On authority from OCI make arrangements for undertaker to transport the body to mortuary
- Complete sudden death procedures
- Obtain all historic medical records for the pathologist
- On authority from OCI arrange for formal ID
- Attend the PM with OCI or deputy appointed by OCI
- attend briefing with pathologist and contribute where required
- Preserve all evidence
- ensure sufficient and appropriate photos taken of the body, clothed, unclothed and during the PM as required (Pathologist to direct)
- Record label and secure all exhibits
- arrange finger prints/palm prints if required
- Attend debriefing and take notes where directed
Who provides authority to move body
Only OCI can give authority to move body
What evidence may be lost or contaminated by moving the body
Larvae or insects DNA fingerprints firearm residue Loose hairs, fibres, pain, glass or other fragments
What actions should Police take when the body has been moved or disturbed
Initial attending officers should make enquiries as soon as possible to ascertain whether body has been moved or disturbed.
Do not attempt to move the body back to its original condition
enquiries made to establish what the original position of body was for later reconstruction and photographs
Before removing body from scene
- Record position of body in sketch plan and direct photographer to photograph body in situ
- In consultation with OC Scene consider recording position of body by measuring from two fixed points
- Record PAWDLE
- Important, consider health risks in moving the body
- Cover hands, feet, head in paper bags and secure with tape, if needed cover paper bags with plastic bags. Where evidence may be lost i.e. blood trails, consult with experts
- wrap the body in a clean plastic sheet and place in body bag
- be careful not to contaminate clothing with foreign objects
- retain all wraps, bag etc used to transport the body as exhibits
- carefully search under where body laid
- Obtain authority from OCI to move the body
- Arrange undertaker to remove body to mortuary
What is PAWDLE
Position of limbs Appearance of body Wounds and clothing Direction of blood trails present Lividity - colouration of skin due to gravitation pooling of blood Extent of rigormortis
Appreciation prior to the PM
- ID of body
- Authority from Coroner to conduct PM
Consultation with pathologist - safe custody of exhibits
- ID who should attend PM
requirements for any specific need for exam or sampling based on known facts - Appropriate resources
- Family cultural considerations
Any likely requirement for second PM
Purpose of a PM
To establish cause of death and may also help with
- Provide areas of interest for subsequent interviews
- Establish how injuries and events contributed to death
- Negate possible defences
- Determine approx height and stature of offender
- Determine nature and size of weapon
- Determine mode and time of death
- identify the body if not already done
What is the primary role of the OC body at PM
To observe, document and deal with all exhibits associated with the body in a structured methodical manner
Before stripping the body
- The body must only be stripped in the presence of the pathologist
- Remove body from secure mortuary fridge and assist staff to take it to the PM exam room
- Carefully remove the body from the bag causing minimal disturbance
- Retain all wraps, bags and sheets used to transport the body as exhibits
- Ensure sufficent and appropriate photographs taken of the body, clothed, unclothed and during the PM (the pathologist to direct)
- Carefully remove the clothing from the body, mortuary technicians may assist but only under the direction and supervision of OC body.
- Do not cut the clothing from the body, if unavoidable, cut where forensic evidence least likely to be present.
- Carefully search each pocket and make an inventory of each possession
- Make and inventory of all clothing and possession as you remove it from the body
- Record, label and secure each item and possession in separate container or bag
- Avoid cross contamination by ensuring items dont come in contact with one another
- Maintain Security and continuity of body, samples and exhibits until the start of the PM
- In cases of obvious head trauma, consider putting sieve in table drain hole before blood and debris washed from head and hair to later compare with weapon
At the conclusion of PM OC body must hand all exhibits over to OC exhibits, what else should they provide
FWS
Notebook entries
PM Exhibit schedule
Name 2 experts who can be present at PM/crime scene
Anthropologist
Biologist
Ballistics expert
Toxicologist
What can a pathologist tell you about skeletal remains
Whether the remains are bones
Whether the bones are human
The age, height, gender and race of the person
Describe 4 methods of ID decomposing body
Fingerprints DNA profiling Facial reconstruction eye or dental records other medical records personal effects
What main documents are required in a sudden death
Pol 47/47A
Copy of deceased persons certificate
Copy of deceased persons ID
statement in relation to the identification of the deceased
Instructions to persons identifying the body
Explain to them the process and what is required of them. Also describe what they are about to see when they view the deceased
Under what circumstances can the OC body make notes of discussions concerning the PM
Only when specifically directed by the pathologist or OCI
What specialist can attend a PM
SOCO
Photography
ESR