bottom up approach Flashcards
what dos the bottom up approach entail
collection of data from crime scene and hypothesises are posed
define probability
the likelihood an event will occur
0 indicates statistical impossibility
1 indicates statistical certainty
what is the purpose of the bottom up approach
to generate a picture of the offender
by using psychological theory and systematic investigation
why is the bottom up approach supported by psychological theory
the bottom up approach is supported by psychological theory due to it being data driven
what is investigative psychology
form of bottom up profiling that matches details from the crime scene with statistical analysis of typical offender behaviour patterns based on psychological theory
what is the aim of investigative psychology
to establish patterns of behaviour that are likely to occur across crime scenes to allow a baseline for comparison
specific detail of an offender can then be matched against a database to reveal important details about the offender, their personal life, background to determine whether a series of o offences are linked as they have been committed by the same person
define interpersonal coherence
the way an offender behaves at a crime scene, including how they “interact” with their victim may reflect how they behave in everyday life
what is geographical profiling
a form of bottom up profiling based on the principle of spatial consistency
define spatial consistency
an offenders operational base and possible future offences are revealed by the geographical location of their previous crimes
define crime mapping
utilising information about the location of the crime scenes within a limited geographical space
when is geographical profiling used
alongside investigative psychology to create hypotheses to determine the offenders thinking and modus operandi
what the 2 assumptions associated with geographical profiling
the assumption that the perpetrator will stay to an area they are comfortable with to commit crimes
their centre of gravity is their home
what dos crime mapping involve
crime mapping involves plotting the location of a linked crimes to create a jeopardy surface
why do police use crim mapping
to help guess where the perpetrator will strike next
what assumption is canter’s circle theory based on
the pattern of offending forms a circle around the offenders home
a circle appears with regards to the crimes (spatial pattern), the more crimes commited the easier it is to plot
