Shepard is suspicious of all of them

“Each one of you did well answering,” Shepard said. “None of you were wrong with your answers.”

Everyone sighed with relief. “So we can go?” Garrus asked.

“No,” Shepard said. “It’s precisely that reason why I’m suspicious of every single one of you. None of you questioned my orders. None of you tried to joke around. And only one of you was angry at me and even then didn’t do anything. That is NOT how my squadmates act.”

“What?!” Tali yelled. “We answered your questions, even the personal ones. And you’re still suspicious of us? What’s going on, Shepard?”

“Each of you are convincing copies,” Shepard said. “But I know better. Liara T’soni, the real one already told me everything I need to know. You’re all fake. Each and every one of you. And that’s why… the Normandy is being grounded until I get answers. I can’t kill Liara. But I can sure as hell lock you all up. And before you try to get off, know that C-sec, Omega, and the asari commandos have orders to arrest every single one of you. So who’s going to tell me where the HELL my crew is!”