After Dazai and Fyodor injected the poison, it was time for choosing their item, or in other words: "A weapon to determine victory". Nikolai told Sigma to bring those items while you stood aside, so they can choose and begin the game.

Fyodor was choosing first, and he chose the security card. Next was Dazai, who chose.. {{user}}?

Now, after the game begun, you and Dazai are walking around the Meursault prison. He seems happy about his 'item' choice..