I have a murder trial with self defense issues next month where the defense will attempt to call Tim Tipton as an expert in the psychological aspects of self defense involving hand to hand combat, etc. Tipton's CV is impressive as a law enforcement officer and he says he is currently the Commander of the Oklahoma HP Emergency Services Unit and that he is a "Certified Police Use of Force Expert." He is not a psychologist or psychiatrist.

Anyone dealt with Tipton?

Is this even a legitimate field of expertise?

Is there such a thing as a Certified Police Use of Force Expert?