THE BOTTOM UP APPROACH

Question 1

BDA A01

Answer 1

-no pre established typology but develops a profile as the crime scene and EWT is analysed
-Investigative Psych Description
-Geographical Psych Description
-All based on the assumption that the offender has a modus operandi (crimes are constant)
-Marauder or Commuter

Question 2

A01: Investigative Psych

Answer 2

-Each crime recorded on a database
-Details of each new crime are matched with this database to develop a hypothesis about characteristics, demographics, motivations
-Emphasises time and place and interpersonal coherence( manner in which the offender treats the victim)

Question 3

A01: Geographical Profiling

Answer 3

-Each offender has an operational base
-Inferred through mapping the location of previous crimes
-Forms circular shape where operational base is ‘centre of gravity’
- based on the assumption that the offender has a modus operandi

Question 4

A03

Answer 4

-Doesn’t always lead to correct identification of offender, Copson(1995), successful 3%, useful 83%

+Reliance on scientific methods of enquiry, uses statistical analysis,method of smallest space analysis to establish correlations

+Evidence to support smallest space analysis, Lundrigan&Canter (2001)
, 120 serial murder cases, spatial consistency: future crimes, centre if gravity, modus operandi.