Nowadays profiling is less about hunches and perhaps more about informed hunches. There's much more in the realm of statistical analysis in profiling now, so profilers will need to know the latest on typical profiles and various models for instance organised vs disorganised. Even in cased like arson the profile will change depending on whether the arson takes places in an uninhabited rather than a urban setting where there's a risk to life. So the modern profiler will rely on past crimes, evidence from the present case, statistical analysis from past crimes as well as intution built over years of experince.
Nowadays profiling is less about hunches and perhaps more about informed hunches. There's much more in the realm of statistical analysis in profiling now, so profilers will need to know the latest on typical profiles and various models for instance organised vs disorganised. Even in cased like arson the profile will change depending on whether the arson takes places in an uninhabited rather than a urban setting where there's a risk to life. So the modern profiler will rely on past crimes, evidence from the present case, statistical analysis from past crimes as well as intution built over years of experince.