The irony is palpable. You should probably consider taking yoir own advice. My info comes from discuession with a guy who is a retired DI from an English police force.
What does a DI do? Unless he's a very high level officer who deals with crime data intricately, I don't know why you'd hold his opinion as gospel. Law enforcement and statistical analysis aren't exactly the same field. One can be good at one and not the other.
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