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Lecture 11

PSY328H1S Lecture 11.docx

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Department
Psychology
Course
PSY328H1
Professor
William Huggon
Semester
Winter

Description
PSY328H1S Lecture 11: Wednesday,April 3 , 2013 rd Dr. Kim Rossmo: creator of geographic profiling Criminal Profiling - How will the victim react in the circumstances? Also look at the crime scene What do profilers do? - Sort the suspect according to how much they match the characteristics the profiler identified, ranking them from the one matching most to the one matching the least - Provide expert testimonies in court - Identify personality traits - Aid in investigation - People who have been raped have different personalities  profiler can evaluate whether the victim is claiming a legit rape allegation - Called in for weird crimes, not just murder - Profilers don’t come in to solve cases, only prioritize data  help police investigation (help solve the case) Profiling Characteristics - Consistency (i.e., same mark on the body) and inconsistency (i.e., but other differences); if there are some consistencies and some inconsistencies, maybe there is a copycat at loose - Probabilities (this is the probability and why) - Clinical - Statistics: start relating (i.e., regression), whether this personality has anything to do with it Profiling - Nondiscriminatory: should not know who the suspects were (or there will be tunnel vision) when doing profiling Slide 13: Prove Guilt (Only 3 ways, profiling is not one of them) 1. Witness 2. Confession 3. Physical evidence Slide 15: Distance Decay Function - Know the place around your residence the best but people know you (higher probability of being identified)  buffer zone - Criminals don’t want to go too far either because those areas are outside their comfort zone  harder to escape - Know the back routes  lived there longer - Red zone: 90% chance that the criminal is in the area - Any serial crime with common characteristics, geo profile will be useful - The more cases there are, the higher the hit score (more accuracy), but also means more victims Slide 22: Who to interview first - Where the person may live Slide 23: Cooling off periods - 11 victims per month  high threat - Behavioural profiler and geographic profiler called in - Narrowed down to six st - 1 person interviewed was the guy (asked for his DNA, he agreed, and the DNAmatched) Psychological Profiling - Organized vs. disorganized? Profiling Inputs - Usually the victim’s demographic are similar or like the offender’s demographics Slide 28: Behaviour Profiling - Thinking directs behaviour Slide 29: Behaviour Profiling - Behaviour reflects personality - What he chose to do but didn’t have to do  In the case of psychopath, maybe related to psychosexual gratification  signature is not going to change Slide 32 - Problem?  Baseline/representative samples  Individual psycho sexual needs, never a perfect example  There can be different start points of logic, as in there may be several explanations that make sense, need to choose one and need to start all over if chose the wrong one (i.e., the offender has some fingers with shorter nails, the crime happened in a rock pub  police immediately assumed the offender to be a guitar player, but the offender was actually a cocaine user) Slide 34 - Organized personality but disorganized crime scene:  Starting out (not experienced); might be younger and stronger  Got caught in the process - Most serial killers don’t start off as a serial killer, so if very organized crime sc
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