Emily Clark is an FBI agent who arrested Alice for stealing the painting.
Emily received a tip that Alice had a stolen painting in her bedroom. She searched Alice's home and found it. When Alice came back home, she was detained and questioned about it. She refused to admit to anything, simply questioning why she'd steal a painting and then display it where anyone could see it. Emily reluctantly allowed her to leave. The FBI then raided AVI, looking for evidence that Alice had stolen the painting. They found the ID badge and security codes, everything she'd need. Alice was arrested, but as she was led out, Ben came in and confessed he'd done it.
She is an FBI agent.