I'm a bit torn both ways here BR !
It's a slippery slope but anything that educates coppers and makes them better at their jobs is surely a good thing.
Before Chistmas I briefly met the scientist who Lie To Me is based upon, He was giving lectures with the Dalai Lama and is teaching the FBI his techniques that include how to detect in a face, emotions fractions of seconds before they lead to an action.
I can see this working for good and bad.