My experience has been interesting.
I work for Parole, so everyone I deal with actually is a criminal.
Our training (when I went through academy 5 years ago was conflicting.
All of our classroom training was about rapport building, verbal judo, motivational interviewing, deescalating, etc...
Our tactical training (handgun, defensive tactics, handcuffing, etc...) is all about command presence and you own the room
Now, again, our situation is different than an officer on the street. A lot of the guys I supervise now I have had for 2 1/2 years, while an officer may meet a person once and only once, so not the same chance to build a rapport.
I have always gone with the walk soft, carry a big stick approach. I know I have belt full of tools at my disposal and the training to use them. I know that I have the power to arrest and they know that. No reason for the interaction to be about that. I have never been in a situation where I felt I HAD to exert dominance, and I have only had to go hands on once, and that was because the guy was drugged out of his mind and trying to escape the hospital.
From my experience it's more about the person's personality than their training. They are either Robocop or a social worker, and then you add their fears or lack thereof to it, and you get what you get.