Korra manages to suppress her urge to grimace at her nickname. She’s never been fond of formalities, much less when they were directed at her.
The officer who addresses her is young, maybe in his early twenties. His face takes on a look of confusion as he realizes that it is none other than the Avatar that’s standing there, in the midst of the Police Headquarters. She can’t blame him though; this must be the first time she has entered the headquarters out of her own free will.