To be fair, Alex is being pretty gentle with Maggie in that interrogation.
How it would have gone if Maggie weren't her girlfriend:
"Winn here is being held on suspicion of…"
"No he's not."
"What? Yes he is, we're the cops, and we say he's being held on…"
"No, he's an employee of our agency, and he's walking free now."
"My…