Upcoming I-485 Interview and Criminal History

Hey I have one question about your case, which state are you? Because I will be facing a interview with immigration soon and i am very worried.....please answer me...Did you answer the questions on the form about being arrested or your criminal history just came up? Did they mention it or you just started to talk about it? please give me more details about how was the interview and how the immigration officer talked to you about your criminal history...please!