Threaten him

From Create Your Own Story

You put your backpack down to avoid an accident, then step forward and grab the officer by the collar with both hands.

"You smug little son of a ten-pence whore," you snarl within four inches of his face, "do you know who I am? Do you know who sent me here, in this miserable excuse for a city? You're going to tell me where's your captain, right now, because what's going on is much too important for insignificant underlings like you to understand, let alone handle!"

There are many much less polite things you would like to tell him, but you do not have the opportunity : you are hit behind the head by a blunt weapon and fall unconscious.

Prisoner