Forensic Evidence and Recovery Flashcards
1
Q
How is dry blood recovered?
A
- Photography
- Background, wet swab
- Seal, sign, tamper evident bag
2
Q
How is wet blood recovered?
A
- Photography
- Background, dry swab
- Seal, sign, tamper evident bag
3
Q
How are cigarette end recovered?
A
- Photograph, recover whole where possible
- Place in rigid container, seal in tamper evident bag
- Freeze if wet
4
Q
How is chewing gum/straws/other saliva small items recovered?
A
- Photograph, recover whole where possible
- Swab if wet spit is present
- Place in small tube or rigid container
- Freeze
5
Q
How are drink containers/food/adhesive tape recovered?
A
- Photograph, whole recovery where possible
- Wet swab then dry swab
- Rigid container, seal with tape
- Freeze if wet/perishable
6
Q
How is saliva recovered from skin/bite marks?
A
Wet dry swab, light pressure to reduce background DNA transfer from skin
7
Q
How is semen recovered?
A
- Photograph, recover whole item where possible
- Background and dry/web swab if on non-porous fixed surface
- Cut out area of interest if on porous fixed material and recover control sample of material
8
Q
How are condoms recovered?
A
- Seal top to retain contents
- Place in plastic tube with end outside top to ensure it is sealed
- Tamper evident bag
9
Q
How are hairs recovered?
A
- Collect with sterile tweezers and place in a plastic tube with the used tweezers
- Seal, tamper evident bag
- “apparent hair plus tweezers used”
10
Q
How do you recover paper/untreated wood/fabrics?
A
- absorb deposits on surface
- package in plastic bag, seal, label
11
Q
How do you recover clothing?
A
- Paper bag unless wet
- Plastic bag for transport to drying facility, then paper bag BUT retain original plastic bag
12
Q
How do you recover card/paper with indented writing?
A
- Rigid container
13
Q
How do you use brown paper bags for packaging?
A
Double fold top of bag, tape every seal of paper ag and sign every seal
