Cop
She absolutely loves her job. Being a cop is just a dream come true.
Seriously, you get paid to catch the bad guys – and you're allowed to carry a gun. What else could you wish for?
She has a thing for protecting people. It started with her brothers – though she really doesn't want to think about that – and now it's only natural for her to try and save anybody out there.
(It's sad that they can't actually save most of people – especially since the aforementioned people are already dead when they get called. However, they do her best to bring murderers to justice – so that the grieving families can have some sort of closure. And hopefully the criminals won't hurt anyone else once they're sentenced to jail – or to even worse punishment.)
She likes her colleagues too. Especially Sam – he's her mentor, to say the least.
Sam has taught her why rules are so important, and how you have to bend them sometimes – the end justifies the means when there are lives at stake.
(She's not willing to admit that her feelings for Sam run deeper than that. She just can't – Sam is a married man, and she'd never do anything… inappropriate. It would ruin both of their careers, and she can't have that.)
The first time her boss compliments her she blushes crimson and is equally pleased and embarrassed at the same time.
The quiet determination she possesses will allow her to go far someday – she's almost sure of that.