Some models got weird dynamic shadows

I’ve been doing alot of posing recently and I’ve noticed that some of my models (like the police officer model i use) don’t have shadows on parts of they’re body.
They only cast shadows on they’re hands and head.

And say my PAC model doesn’t have one at all.

It there some kind of console command to fix this at all? or do i have to go into some model editor and fix it myself?

(I don’t have a screenshot right now, i’ll post it when i get back from class.)

Screen Shots?

I’d say its the creator’s at fault. No you or your game.