Science Practical - Recovery Flashcards
How to recover exhibits believed to have accelerants on?
Nylon bag in a nylon bag.
If liquid, decant into container then place nylon bag on top before lid.
How to recover wet clothing from fire scenes?
Nylon bag - do not dry
How to recover wet clothing?
Plastic tamper evidence bag, frozen or drying cabinet.
How to recover clothing?
Paper sac
How to recover swabs?
But all (2 or 3) swabs into same TE bag, same ref number and info.
How to recover a document?
Likely rigid container
How to recover tape?
Rigid container with sticky part not stuck to box
How to recover a bottle?
Rigid container
How to recover liquid?
If bottle unsecured, decant into accelerant tin.
If bottle 100% secure (baby bottle), package into rigid container
How to do a KM test?
Take a scratching of blood onto chromatography paper. Place 1 drop of KM, 1 drop of ethanol and 1 drop of hydrogen peroxide. Should immediately turn pink if positive reaction.
What swabs are taken for blood?
Control swab, background swab, apparent blood swab.
What swabs are taken for saliva?
Control, 1 wet swab, 1 dry swab
How to recover a condom?
Using condom kit, put freezer clip on and place into TE bag with biohazard tape. Then seal into box.
7 things on a CJA label
Police Force
Exhibit Number
Description
Date and Time
Address
Name
Signature
How to recover explosive material?
Swan necked nylon bag
What support would be needed for an explosive exhibit?
Forensic Explosive Laboratories (FEL)
What goes on a fingerprint lift?
Exhibit number
Date and Time
Address
Description
Direction arrow
Sign over edges
Name
Scale and diagram
What info goes on a swab?
Address
Date and Time
Exhibit Number
Name
Signature
Description/where from
How to recover drugs?
Paper wrap or universal tube then into TE bag.
How to recover Firearms?
ARV will use lead lined bag. CSI will supply TE bag to be placed into lead lined to collect debris. Packaged into cardboard box with Red Label . Paper and plastic bag also packaged as exhibits.
What support would be needed for a fingerprint?
Fingerprint enhancement lab (FEL), Fingerprint identification services, Fingerprint expert
What support would be needed for a drugs examination?
Drugs examination officer
Why would we recover drugs?
To identify and classify as class a, b, c or legal.
To maintain forensic early warning system with regular updates.
What does a forensic biologist do?
Body fluids, dna testing, fibre analysis (any biological material)
What does a forensic toxicologist do?
Examine tissue or body fluids for drugs
When would you use superglue treatment?
Major incidents, non porous surfaces
What can you use on porous and non porous surfaces for fingerprints?
Aluminium, black granular
Who analyses BPA?
BPA expert
Who analyses documents?
Forensic document examiner
Who can analyse GSR?
Forensic chemist
Where are fingerprints uploaded?
AFIS (automated fingerprint identification system)
Where is DNA uploaded?
NDNAD (national DNA database)
Where are footwear marks uploaded?
NFRC (national footwear reference collection)
Who is responsible for the recovery and safe disposal of bombs and IEDs
EOD (explosive ordnance disposal)
What is EOD and what do they do?
Explosive Ordnance disposal.
Responsible for safe recovery and disposal of bombs
What does a forensic chemist do?
Analyse GSR and non biological trace
What support would be needed for arson exhibits?
Fire scientists/ forensic chemists
What does a forensic submissions officer do?
Manage trace evidence and DNA submissions
What is a DNA input assistant?
manage DNA work going to FSP (forensic service provider)
What is a forensic investigation researcher?
Analyse DNA hits and forensic results
Who manages trace evidence and DNA submissions?
Forensic submissions officer
Who manages DNA work going to the FSP?
DNA input assistants
Who analyses DNA hits and forensic results?
Forensic investigation researchers
What does an enhancement lab do?
Trace evidence
What can be used to identify seminal fluid?
UV / AP test
False positive for AP test?
Vaginal secretions and cauliflower
Specialist photography for sexual assault cases?
UV photography
Swabs for wet seminal fluid
Dry swab
Recovery of dry seminal fluid
Paper sac
Recovery of wet seminal fluid
Plastic bag/tube and freeze
Consideration when transporting fire exhibits/nylon bags
Hydrocarbons and fuel vapours can give false positives
What would you use to recovery trace explosives?
TERK (trace explosive recovery kit)
Who is needed for firearm recovery
ARV
Swabbing shotgun cartridges
1 dry swab
Swabbing 9mm cartridges
Wet/dry swabs of base and side
