A suspect was an NPC the player could grab and put in the cage in the Evil Twin random event. There were five of them; one of them will look identical to Molly, whilst the others would have differences in the style of their hair or clothing.
They all had the left-click "Grab" option, but this could not be used as the player must have controlled the mechanical claw via the control panel to catch a suspect.
When a suspect was caught and thrown into the cage, she would exclaim "You're putting me in prison?" If she wasn't Moira, she would vanish. If she was, she would do the Angry emote and all other suspects would vanish, and the player would go back to Molly.