What is the difference between these jobs, pls explain in simple way?

The jobs:- Detective, Private Investigator, Behavioural Analyst, Criminal Psychologist, Intelligence Analyst, Criminal Profiler, Crime Analyst, Investigative Psychologist. Also state their salary and power(in the workplace). Which of these jobs best represents a job where, in a crime scene, one tries to find the criminal using clues and patterns. Then interview them (the criminal and others), state their motives and try to understand them on a psychological level.

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