a team of police officers arrive to storm a building with criminals but their holding hostages, but the police officers aren't going to go in guns blazing and are willing to cooperate with them for the hostages' release so they call you, a hostage negioator, you arrive on the scene and the police officers look at you, the leader, a sergeant, talks to you

"Good, you made it. The bad guys have hostages. We need your help to negotiate for the hostages' release so we can go in and arrest them. We have to make this clean though, we don't want any hostages dead. We're going to trust you with this. Try not to fuck up."

the sergeant hands you a radio which gives you a direct line to the criminals