Don't know. While watching Akane with the shotgun I thought that if she would have shot him her PP would have increased (well, if she was not Akane). Well to be honest my first constant thought was SHOOOOT, drop the dominator, take aim
with both hands, and SHOOOT!!!!
Anyways, I thought that the main reason there is no manual override is due to the fact that shooting would increase PP value risking the inspector to go latent criminal. So the system prioritizes inspector's state of mind over everything else. The flaw here is that if the override would enable only the stun mode there's no way that someone PP value would increase. So, why not?