A01 :
Top-Down Approach American Approach
Offender profiling TypologyLead
↳ investigative tool
; entify an unknown offender = provides info on potential next victims -
look at other cases (where interviews have taken place
↓ ↳ ↳ build picture of typical offender profiles
* usually for serious crimes ; murder , rape *
social characteristics mental characteristics
↳ employment, marital ↳ Level of education,
status
supportinaEviert-erBurge
motivation
Hazelwood & Douglas (1980) and Doug name motivated serial tive a
Organise Offenders Disorganised offenders serial killer, (including Ted Bundy) .
From the data obtained , typologies
!
planned their crimes in advance do not plan in advance
S
were identified from the crime scene and the crime itself
rapist, necrophile ;
· ·
·
live orderly lives ·
evidence is usually left at the organised offender
·
usually will someone after major scene ; blood, semen , weapon ↳ categories : groups of
life events
·
usually less socially competent, charming , intelligent, offenders displaying certain clusters
bring weapons and restraints to low 1Q and are typically
·
the attended law school of behaviours and attitudes
crime scene unemployed
·
average -
1Q & employed
high Top-down Approach : methodology steps
1 murder type :
isolated ? stabbing ? Strangulation ? Classification : serial , spree , mass
ORDER OF INVESTIGATION 2 primary intent : pre-meditated ?
.
3. Victim risk : ↑or ↓ (
1 .
What happened at the crime scene ? due to vulnerability as targets (Children ,
elderly , prostitues
would've committed that/those crimes ? Offender risk : the risk the criminal took (busy
4
. Who
2 . Street = high risk)
3. What kind of personality would this person have ?
5
. escalation : extent to which the crimes have escalated
6 time factors : time of day informs us of their schedule and risk levels
Jackson and Bekerian
.
7 location factors : informs us of their familiarity
·
inferences about criminals can be made from the crime scenes
I due to the M O .
.
of the Criminal since criminals usually operate in the same way
↓
modus operandi
Top-Down Approach American Approach
Offender profiling TypologyLead
↳ investigative tool
; entify an unknown offender = provides info on potential next victims -
look at other cases (where interviews have taken place
↓ ↳ ↳ build picture of typical offender profiles
* usually for serious crimes ; murder , rape *
social characteristics mental characteristics
↳ employment, marital ↳ Level of education,
status
supportinaEviert-erBurge
motivation
Hazelwood & Douglas (1980) and Doug name motivated serial tive a
Organise Offenders Disorganised offenders serial killer, (including Ted Bundy) .
From the data obtained , typologies
!
planned their crimes in advance do not plan in advance
S
were identified from the crime scene and the crime itself
rapist, necrophile ;
· ·
·
live orderly lives ·
evidence is usually left at the organised offender
·
usually will someone after major scene ; blood, semen , weapon ↳ categories : groups of
life events
·
usually less socially competent, charming , intelligent, offenders displaying certain clusters
bring weapons and restraints to low 1Q and are typically
·
the attended law school of behaviours and attitudes
crime scene unemployed
·
average -
1Q & employed
high Top-down Approach : methodology steps
1 murder type :
isolated ? stabbing ? Strangulation ? Classification : serial , spree , mass
ORDER OF INVESTIGATION 2 primary intent : pre-meditated ?
.
3. Victim risk : ↑or ↓ (
1 .
What happened at the crime scene ? due to vulnerability as targets (Children ,
elderly , prostitues
would've committed that/those crimes ? Offender risk : the risk the criminal took (busy
4
. Who
2 . Street = high risk)
3. What kind of personality would this person have ?
5
. escalation : extent to which the crimes have escalated
6 time factors : time of day informs us of their schedule and risk levels
Jackson and Bekerian
.
7 location factors : informs us of their familiarity
·
inferences about criminals can be made from the crime scenes
I due to the M O .
.
of the Criminal since criminals usually operate in the same way
↓
modus operandi
