Rebecca held the card up. "If this is fraudulent, we won't be preserving a tool someone can use to compromise access again."
"Destroying an unverified credential would still be unnecessary," Maya said. "Destroying a verified one would create a documented custody event. Call the validation line."
Rebecca tore the credential in half.
The sound was dry and surprisingly small. Ben remembered it afterward more clearly than he remembered Rebecca's raised voice. A laminated card was not supposed to tear easily, and she had to bend it first, pressing the crease with her thumbs, then pull hard enough for the material to split along one edge. She dropped the two pieces on the counter like an argument she had won.
At that same instant, the indicator beside the black case's latches turned red. A muted click came from inside it, followed by a second click beneath the handle. Maya did not touch the case. Ben stared at the red light, then at the pieces of the card lying beside the keyboard.
"What was that?" Rebecca demanded.
"The security seal responding to the destruction event," Maya said. "The event has been recorded remotely."
"Recorded by whom?"
"The authority responsible for the credential and the case. The validation line can explain the status."
Rebecca leaned forward. "You are refusing to identify the organization that sent you into a police station with locked equipment."
"I'm following a restricted disclosure instruction. You're permitted to confirm it without relying on anything I tell you about myself. That's the purpose of independent validation."
"Lieutenant," Ben ventured, "we should make that call."
Rebecca did not acknowledge him. "Ms. Williams, you're going to remain here while we establish whether you're attempting unauthorized access."
Maya glanced toward the interview hallway. "Are you detaining me?"
"I'm directing you to interview room two while we sort this out."
"Then document that as a detention, including its start time and the status of the two access checks."
"You don't get to write my report for me."
"No. I don't."
Rebecca pointed toward the hallway. Maya lifted her folder, left the case where it stood, and walked beside the lieutenant. Ben watched them pass the bulletin board with photographs of officers receiving commendations, then disappear beneath the sign marked INTERVIEW ROOMS. Nobody raised a hand. Nobody reached for a weapon.
Nothing happened that could later be described as an attempted escape or a violent encounter. Yet Ben felt as though the entire building had crossed an invisible boundary while everyone pretended the day was ordinary.
At the door to interview room two, Maya stopped. "When you go back downstairs," she said, "you'll run the damaged credential through the internal system because you no longer trust the front desk reader."
Rebecca gave her an impatient look.
"The internal system will confirm the same authorization," Maya continued. "Then you'll decide that both systems might have been compromised. That's why the separate validation channel exists. It keeps uncertainty from becoming whatever the person in charge wants it to be."