The aim of profiling isn’t to tell police exactly who did it but to narrow the search down to a list of potential suspects and give the police a starting point to save time.The profile should contain information about an offenders personality ,age,race,type of employment(if any),religion,marital status etc. There are associations made between the crime scene and the potential criminal.
The FBI created a ‘top down’ approach to profiling which involves 4 stages in order to effectivley analyse a crime scene .Stage 1 is data assimilation where evidence such as police reports ,witness statements and photographs .Small details such as the time of death can reveal lots of details like the killers job hours and whether hes an experienced killer killing in daylight etc.Stage 2 is where the murder is classed as either organised or disorganised, according to Douglas et al (1992).A disorganised murder can be evident in a spontaneous offence where the victim was unknown with minimal conversation where as a more organised murder would of planned the killing and targeted a specific victim and would show control of the situation possibly by the conversational techniques.An organised offender is likely to be married living with their partner of average intellgence where as a disorganised offender is likely to have personal characteristics like living alone near the crime scene, being unemployed and possibly harshly disciplined as a child.In stage three theres a crime scene reconstruction where a hypothesis about the victim is made.Finally , stage four is where the profile is generated regarding demographic ,physical ,lifestyle, behavioural and personality characteristics and given to the police.
The US approach is limited to crimes which leave significant evidence such as murder and rape.These are horrific crimes so its worthwhile profiling them if it may contribute to solving them but on the other hand these cases tend to be...