Crime scene investigation Flashcards
What is crime scene?
- Place where the offence occurred or where the body was found, property or associated evidence was found
- The body itself in cases of homicide
- All people whether living or dead, who are associated with the offence may be considered as crime scene
- Any vehicles due by suspects
- Suspects themselves
- The victim and suspects home and work place
What is crime scene examination?
Uses physical evidence
Deductive and inductive reasoning to gain knowledge of the events surrounding the offence
If reconstructs what took place in a particular area and finds evidence connecting that activity to particular people, places and objects
Describe
1) hot zone
2) warm zone
3) cold zone
1) that part of the scene requiring examination and evidence collection
2) a transition zone to enable scene examiners to put on and take off protective clothing, access equipment and process exhibits
3) a place within the outer cordon for meetings, meals, scene guards etc.
What should you must complete prior to leaving the scene
M E S S
Make contact with o/c investigation to ensure they are aware you are leaving the scene and have no further instructions for you prior to leaving
Ensure all uplifted exhibits are packaged and labelled correctly
Ensure the scene is secure
Ensure scene guard is in place and has been briefed
Upon return to the investigation base?
B E D
brief O/C investigation of any further findings for the day
Complete all documentation
Hand all exhibit to the exhibit officer. If no exhibit officer is assigned ensure all exhibits are secured in a appropriate secure storage
Releasing the scene
REC SS
Ensure all police equipment has been removed from the scene including all rubbish
ensure all exhibits have been packaged and labelled correctly
Contact o/c investigation prior to leaving to ensure they are satisfied that there is nothing further to be done at the scene
the search warrant has been endorsed and if appropriate a copy should be left for the occupier with an inventory of what has been seized
Ensure scene log has been up lifted from the scene guard and they have been released
Formal scene examination process?
PRO MES
photograph and fingerprint the scene and collect forensic evidence
Search approaches , enter and exit points and seats of activity SSG should be considered
Make appropriate record with a scene log
Outside scene consider,
How to contain the area and protect fro. Elements tide animals
If additional equipment/services including generators and lightings for staff areas and equipment storage may be needed
Carry out further reconstruction if required
Ensure staffs are fully briefed
O/c scene
Actions prior to attending the scene
SRBA LE
Sufficient staff members have been assigned to assist
Roadblocks and cordons have been set up
Staff members briefed
Additional o/ have been appointed o/c body or exhibits
Any legal requirements
The necessary equipment has been sent or requested
What steps do you follow on the way to the scene?
I RIP
Obtain all available information
discuss role and responsibility at the scene
Inform comms upon your arrival
Plan your approach to the scene
Steps to follow when you arrive at the scene?
NICER VISAS
Note time of your arrival, weather other relevant info
Identify interference
Maintain comms advised sfp
Stop pause and engage, note what is happening
Note Vehicles leaving the scene
Informant obtain the facts in brief
SITREP
approach scene with required equipment
Responsibilities of o/c exhibits?
Receiving exhibits
Ensuring that they are labelled by the finder and accompanied by exhibit schedule
Ensuring exhibits numbers are uniquely numbered
Recording the exhibits in the exhibit registrar
Recording all exhibit movements
Securing the exhibits
Delivering the exhibits for examination and analysis
Preparing exhibits for production in court
Ensuring that the continuity of evidence is maintained
Producing the relevant exhibits in court
the five digit number ranges for exhibits?
Admin 10000 Victim 15000 Witness 20000 Area enquiries 25000 Scenes 30000 Suspects 70000
Exhibits
What o/c exhibit need to be ensure before accepting any exhibit into their custody?
The person has:
CALL P(o)
Correctly preserved the exhibit
Labelled each exhibit with the exhibit number and name of the operation
Correctly recorded the exhibit in an exhibit schedule
Labelled, separately packaged and sealed the exhibit in accordance with the standard operating procedure
Assign a unique exhibit number from the allocated number range
What Actions to be taken when victims have been injured?
AID DIVA
first aid Preliminary interview Death declaration DNA Injuries record and photograph Victim is a scene Accompany to hospital preserve clothing
Responding to the victim
Preserve life
Preliminary interview
Protect from further injury
What actions to be taken if victim has no sign if life?
CORPSE
call ambulance Obtain confirmation life extinct Record everything Establish the persons I'd Sketch and photograph Early update oc and comms
Scene guard’s responsible?
MR SCENE GUARD
Maintain a time scene log
Replacement , brief oncoming scene guard
Scene , prevent unauthorised entry from the scene
Communication any information received to o/c scene
Ensure everyone entering the scene follow CAP
no discussion by by standees of the case
Enter don’t enter the scene for personal use
Guard avoid disturbance and lire intent the scene
Use courtesy when dealing with civilians
Advise o/c of any actions taken
Record all movement from or to the scene
Duty remain duty until relieved
First attending CIB
What are the examples of post history
Staff moving though a house to assist a victim
Scuffle with a offender in making arrest
A body being over to ascertain signs of life
Uplifting of an exhibit to ensure its preservation
The attendance of emergency services
What we the purpose of reconnaissance?
A preliminary interview
Plan of action
Appreciation
What do you have to ensure after taking immediate action?
Exhibits preserved Scene is clear of people Cap Boundaries are correctly set Scene guards correctly placed ,tasked and briefed Police briefed and tasked Scene is secure Scene lit is established Suspects and witness taken for interview
What do you have to brief when other CIB arrives?
What needs to be done immediately
What has been one
What is being done
The situation
Scene examination process
CFACA
Conduct reconnaissance
Formulate a crime scene examination strategy
Action taken prior to attending the scene
Conducting the formal examination
Action taken after the examination
O/C responsibilities
CCPP
Controlling freezing and preserving the scene and ensuring it is safe
Briefing staff oh their duties
Providing relevant exhibits in court
Providing communication between the scene and o/c investigation
Coordinating and overseeing the crime scene examination
Photographed and fingerprinted and examined by specialists before it is searched
Dealing with exhibits when found
Advise o/c scene to view it Don't touch it Photograph it in situ Consider fingerprint Mark the position where it was found Measure the position from a fixed point
O/c body responsibility
CSI GOD DMMIT ME RAPED
certificate - ensure death has been certified by a doctor or qualified paramedic using a diseased person certificate pol 265
Sudden death procedures completed
In-situ ensure body photographed in-situ consider video recording
Guard- secure and guard the body, samples and exhibits
Observations - note & record observations of the body
Details of all medical staff who attended
Da bros - ensure all cultural responsibility addressed.
Maintain - security & continuity if the body , samples and exhibits
Moved? Establish if the body has been moved or disturbed
I.D arrange formal ID on authority of the OC
Transport - arrange transport to mortuary on authority of the OC
Mortem - attended postmortem with OC or deputy
Evidence - preserve evidence from the body
Remove - clothing & personal effects from the body
Arrange - fingerprints & palm prints
Photographer - if necessary direct the police photographer
Exhibits - record, label & secure all samples & exhibits from the body
Debrief - attend the debriefing with the pathologist & record findings
Moving the body
Before moving the body??chew
SCRATCH CROWE
Sketch the body position, take photo and consider video
Consider marking the body position, consult with O/C scene
Record all details of the position of the body such as wounds, clothing, limb position
Assess the health risk that may come from moving the body
Take care to cover head , feet and hands with paper bag - secure with tape to prevent loss of trace evidence
Check clothing is not contaminated by contact of foreign objects
Have body wrapped in plastic sheet before placed in body bag
Carefully search underneath where the body laid
Retain all bags used to transport the body, they are exhibits
Obtain approval from OC investigation to move the body
When directed by OC investigation arrange contracted undertaker to remove the body to the mortuary
Ensure continuity and security of the body as an exhibit at all times
Duties at mortuary
Arrange formal identification of the body
Body remain in its present condition until the commencement of the postmortem
Ensure mortuary staff do not wash the body
Ensure the body is labelled and secured in the mortuary fridge
Retain any key used to secure the body until it is require for the postmortem
C
