SLOAN: How can you be sure you're not working for them? Are you familiar with the term engramatic dissociation?
SLOAN: The theory holds that if a person's mind is sufficiently disciplined, he'd be capable of compartmentalising contradictory information, believing one thing while doing another. I think you possess that kind of mind. I think the Dominion saw that and decided to take advantage of it. I think they broke you and turned you to their cause, and then had you suppress the memory of what happened.
SLOAN: What could be more perfect? There's no chance of your getting caught because you don't even realize you're working for them. When they want to debrief you, all they do is trigger your memory.
SLOAN: Doctor, I am trying to help you, but I need your cooperation. I need you to tear down the walls inside your mind and dredge up a fragment of a memory, anything about your mission, your contacts. I know it's not easy, but you've got to try.
Bashir: There are no memories to dredge up. I'm not suffering from engramatic dissociation. I'm a loyal Starfleet Officer, and will not answer anymore questions unless I am formally charged and can respond with the benefit of counsel! Bashir starts to walk away.
SLOAN: I've had enough of your lies, Doctor! You think you're smarter than the rest of us, don't you? You think you're smarter than the millions of brave men and women who put their lives on the line for the Federation. You want to do things the hard way, fine, but I'm going to get the truth out of you, and when I'm done I'm going to take whatever's left of you and lock it away. Guards!!!
Later, Bashir is being led down the busy Promenede in handcuffs with Chandler, Kagan and 2 security officers Sisko: Is it really necessary to drag a Starfleet Officer across the Promenede in irons?
Quark: I'm sure this is all a mistake. (To Kira) Is it? Sisko steps out of the way, and Bashir is taken into the security office.