In a siege situation, robbers usually adopt the following strategies to ensure a safe escape or gain some benefits through negotiation: 1. **Remain calm and rational**: Any intense emotions will cause tension and intensify the conflict, so they need to appear rational and calm. 2. **Prioritize the safety of hostages**: If there are any hostages, ensuring their safety is a way to occupy the moral high ground in the negotiation, and it can also use hostages as bargaining chips. 3. **Clarify your needs**: Express your needs clearly and reasonably, such as safe escape, reduced punishment, etc., so that the negotiation guidelines are clear and visible. 4. **Show sincerity and willingness to cooperate**: Show sincerity in the negotiation through small compromises or cooperation, so that the other party feels the value of continuing the dialogue. 5. **Buy time**: By prolonging the negotiation time, it may give your side more opportunities to consider countermeasures, but it may also cause the negotiating opponent to make omissions. 6. **Create a sense of urgency**: Make the other party feel that not reaching an agreement quickly will bring greater losses, thereby increasing the other party's willingness to compromise. 7. **Distract and fuzzy information**: Sometimes distract the other party's attention or provide vague information in order to find an escape or increase negotiation advantages. In short, for the robbers, the focus of negotiation is to ensure that the hostages and themselves are not harmed as much as possible, while seeking the best solution within reasonable limits to get out of trouble. The police and negotiation teams are usually professionally trained and have rich experience in dealing with such situations, so the robbers face great risks when planning any strategy.