search patterns week 5 Flashcards
what are the 3 essential crime scene protocols?
- record everything e.g time,weather, door status
- try not to touch anything
- avoid likely entrance/exits routes
in what way should photographs be taken from a crime scene
- four corners of the room(tripod)
- closer version of four corners
- evidential photos with a scale, then without
what are the 5 crime scene search methods?
- zone
- strip/line
- grid
4.spiral - wheel
what are the advantages of strip/line search?
effective for outdoor scenes
very thorough
what is an advantage of double strip/grid search
increases thoroughness
what are the advantages of zone search?
effective in indoor/outdoor scenes with regular patterns
- usually indoor scenes
-permits different search patterns to be used in each sector if needed
what are aerial searches conducted by?
fixed wing aircrafts/helicopter
when searching for human remains what do we need to look for?
- disturbed earth
- changes in vegetation,soils,rocks,insects
-evidence of animal scavenging - animals +faeces
what are the different coloured flags that are used to aid searches during crimes and what are they used for?
red=human remains
yellow= evidence, area/items of interest
what do you package items containing accelerants like petrol?
nylon bags or tins
what is a police search advisor?
they plan searches and control search teams on low risk and other police search operations